Imaging device, control method, and program

Abstract

To provide a display that can faithfully represent the quality of content, and to prevent a reduction in operability when playing back and displaying plural pieces of content.SOLUTION: An imaging apparatus has: mode switching means that switches an operation mode of the imaging apparatus to any one of a plurality of operation modes including a photographing mode and a playback mode; and control means that controls setting information related to display characteristics of content set to the imaging apparatus and a display connected to the imaging apparatus. When the operation mode of the imaging apparatus is switched from the photographing mode to the playback mode, when one content is played back in the playback mode, the control means performs control to change the setting information to one according to the content to be played back, and when plural pieces of content are played back in the playback mode, does not change the setting information according to the plural pieces of content to be played back.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a content display control technology. [Background technology]

[0002] Imaging devices such as digital cameras are capable of generating HDR (High Dynamic Range) content, which has a wider dynamic range than conventional SDR (Standard Dynamic Range) content. To faithfully reproduce and display HDR content generated by a digital camera, a display device capable of displaying HDR content is required.

[0003] When connecting an HDR-compatible display device to a digital camera and playing back and displaying HDR content output from the digital camera on the display device, the color and brightness of the HDR content can be faithfully reproduced by adjusting the setting information (connection settings) regarding display characteristics such as the color gamut and gamma characteristics of the content set on the digital camera and display device to match the display characteristics of the content being played.

[0004] Patent Document 1 describes a technology that calculates the saturation of content and performs color gamut conversion so that it matches or approaches the color tone of the display device. Patent Document 2 describes a technology that corrects original image data based on a virtual gamma curve that conforms to the characteristics of the liquid crystal panel. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-229999 [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-064031 Summary of the Invention [Problem to be solved by the invention]

[0006] In the above-described conventional technology, the color gamut and gamma characteristics of the content are converted to match the dynamic range that the display device can display, which may result in an inability to faithfully reproduce the quality of the original content, such as color and brightness, making it difficult to properly evaluate the quality of the content. Furthermore, if the display device is capable of faithfully reproducing the color gamut and gamma characteristics of the content, but the connection settings of the display device do not match the color gamut and gamma characteristics of the content being played, it is desirable to change the connection settings of the display device so that they match the color gamut and gamma characteristics of the content. However, changing the connection settings requires reconnecting the digital camera and the display device, which can take several seconds.

[0007] For example, when content such as still images and videos output from a digital camera is played back on a display device, if multiple contents with different color gamuts and gamma characteristics are mixed, the frequency of reconnections may increase as the content being played is changed. Furthermore, during reconnections, the user cannot view the content being played, reducing convenience. On the other hand, users may want to appropriately evaluate the quality of each piece of content.

[0008] The present invention has been made in consideration of the above-mentioned problems, and its purpose is to realize a technology that can suppress a decrease in operability when playing and displaying multiple contents on a display device that can faithfully represent the quality of the content. [Means for solving the problem]

[0009] In order to solve the above problems and achieve the object, the imaging device of the present invention includes a mode switching unit that switches between a plurality of operation modes including a shooting mode and a playback mode, and a display device connected to the imaging device, which is configured to display content. connection a control means for controlling the setting information, before Switched from the shooting mode to the playback mode Time To, One content is displayed on the display device.In the case , displayed on the display device Content-aware connection Control to change to setting information, When the shooting mode is switched to the playback mode, a plurality of content are simultaneously displayed on the display device. In the case , displayed on the display device Content-aware connection Control to prevent changes to setting information When a predetermined operation member is used to instruct the imaging device to be powered on and the imaging device is operated in the playback mode, the connection setting information is controlled to be set in accordance with the content displayed on the display device, regardless of the number of contents displayed on the display device. . [Effects of the Invention]

[0010] According to the present invention, in a display device capable of faithfully displaying the quality of content, it is possible to suppress a decrease in operability when a plurality of contents are reproduced and displayed. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is an external view of an imaging apparatus according to an embodiment of the present invention. [Figure 2] FIG. 1 is a block diagram showing the internal configuration of an imaging apparatus according to an embodiment of the present invention. [Figure 3] 4 is a flowchart showing a mode switching process according to the embodiment. [Figure 4] 4 is a flowchart showing a control process in the shooting mode of FIG. 3; [Figure 5] 4 is a flowchart showing a control process in the playback mode of FIG. 3; [Figure 6] 6 is a flowchart showing a process for playing back and displaying the selected content in FIG. 5; [Figure 7] 6A and 6B are diagrams illustrating the transition of connection settings when switching from a shooting mode to a playback mode. [Figure 8] 10A and 10B are diagrams illustrating the transition of connection settings when selected content is switched in playback mode. [Figure 9] 10A and 10B are diagrams illustrating the transition of connection settings when the number of displayed contents is changed in playback mode. [Figure 10] 4 is a flowchart showing a control process in the menu mode of FIG. 3; [Figure 11] 10A and 10B are diagrams illustrating the transition of connection settings when switching from menu mode to playback mode. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the invention claimed. Although multiple features are described in the embodiments, not all of these multiple features are necessarily essential to the invention, and multiple features may be combined arbitrarily. Furthermore, in the accompanying drawings, the same reference numerals are used to designate the same or similar components, and redundant explanations will be omitted.

[0013] In this embodiment, an example of a system is described in which the imaging device of the present invention is applied to a digital single-lens reflex camera capable of taking still images or videos (hereinafter also referred to as images), and content such as images taken by the digital camera 100 is played back and displayed on a display device 700.

[0014] In the system of this embodiment, digital camera 100 and display device 700 are connected by cable 710, and setting information (connection settings) related to content display characteristics set on digital camera 100 and display device 700 can be changed. Furthermore, in the system of this embodiment, when the operating mode of digital camera 100 is switched from shooting mode to playback mode, the connection settings between digital camera 100 and display device 700 are changed according to the content to be played back when a single content is being played back, but the connection settings between digital camera 100 and display device 700 are not changed according to the content to be played back when multiple content is being played back. In this way, in display device 700 that can faithfully reproduce the image quality (content quality) such as color and brightness of images captured by digital camera 100, a decrease in operability that occurs when multiple content is played back and displayed is suppressed.

[0015] <Device Configuration> First, the configuration and functions of the digital camera 100 of this embodiment will be described with reference to FIGS.

[0016] FIG. 1(a) is a front perspective view of the digital camera 100 with the lens unit 200 removed, and FIG. 1(b) is a rear perspective view of the digital camera 100. FIG.

[0017] FIG. 1(a) is a front perspective view of the digital camera 100 with the lens unit 200 removed, and FIG. 1(b) is a rear perspective view of the digital camera 100. FIG.

[0018] 1, the rear display unit 101 is an outside-viewfinder display unit that displays images and various information, and is a display device such as an LCD provided on the rear surface of the camera body. The rear display unit 101 also displays playback of captured still images, playback of recorded videos, and live view images of still images being captured and videos being recorded. The rear display unit 101 is provided with a touch panel 270a. The touch panel 270a is a touch operation member that can detect contact (touch operation) with the display surface of the rear display unit 101 (the touch operation surface of the touch panel 270a).

[0019] The viewfinder display unit 243 is a display unit provided on the top surface of the camera body, and displays various camera settings such as shutter speed and aperture. The shutter button 102 is an operation unit for issuing shooting instructions. The mode selector switch 103 is a rotary dial-type operation unit for switching between various modes. The terminal cover 104 is a cover member that protects a connector (not shown) for connecting the digital camera 100 to an external device such as a display device 700 (described later) via a cable 710. The main electronic dial 105 is a rotary operation member included in the operation unit 270 (described later in FIG. 2), and by rotating the main electronic dial 105, settings such as shutter speed and aperture can be changed.

[0020] The power switch 106 is an operating member that switches the power of the digital camera 100 on and off. The sub electronic dial 107 is also a rotary operating member included in the operating unit 270, which will be described later in FIG. 2, and is used to move the selection frame, advance images, etc. The four-way key 108 is also a movement instruction member included in the operating unit 270, which will be described later in FIG. 2, and is a four-way operating button that has push buttons that can be pressed in four directions: up, down, left, and right. The operation that can be performed depends on the part of the four-way key 108 that is pressed in the direction that it is pressed. The SET button 109 is also a push button included in the operating unit 270, which will be described later in FIG. 2, and is mainly used to confirm a selected item, etc.

[0021] The movie recording button 110 is also included in the operation unit 270, which will be described later in Fig. 2, and is used to start or stop movie recording. The AE lock button 112 is also included in the operation unit 270, which will be described later in Fig. 2, and can fix the exposure state by pressing it while the camera is ready to shoot. In playback mode, the AE lock button 112 functions as a zoom-out button to reduce the playback image and decrease the magnification.

[0022] The enlargement / reduction button 111 is also included in the operation unit 270, which will be described later in Fig. 2, and is an operation button for turning enlargement mode on and off in live view image display in shooting mode. By turning enlargement mode on and then operating the main electronic dial 105, the live view image can be enlarged or reduced. In playback mode, the enlargement / reduction button 111 functions as a magnification button for enlarging the playback image and increasing the magnification.

[0023] The playback button 113 is also included in the operation unit 270, which will be described later in FIG. 2, and is an operation button for switching between shooting mode and playback mode. By pressing the playback button 113 during shooting mode, the user can switch to playback mode and display the most recent image of the images recorded on the recording medium 250 on the rear display unit 101. The menu button 114 is also included in the operation unit 270, which will be described later in FIG. 2, and by pressing this button, a menu screen on the rear display unit 101 on which various settings can be made is displayed. The user can intuitively make various settings using the menu screen displayed on the rear display unit 101, the four-way key 108, the SET button 109, or the touch bar 115.

[0024] The touch bar 115 (multifunction bar) is also included in the operation unit 270, which will be described later with reference to FIG. 2, and is a line-shaped touch operation member (line touch sensor) capable of receiving touch operations. The touch bar 115 is positioned so that it can be touched (touched) with the thumb of the right hand when the grip unit 116 is held in the right hand (held with the little finger, ring finger, and middle finger of the right hand) so that the shutter button 102 can be pressed with the index finger of the right hand. In other words, the touch bar 115 is positioned so that it can be operated when the user places his / her eye on the eyepiece unit 216, looks through the viewfinder, and is in a position (shooting posture) so that the shutter button 102 can be pressed at any time. The touch bar 115 can receive tap operations (operations in which the user touches and then releases the touch bar without moving within a predetermined period of time), slide operations to the left or right (operations in which the user touches and then moves the touched position while keeping the touch) and the like. The touch bar 115 is an operation member different from the touch panel 270a, and does not have a display function.

[0025] The grip section 116 has a shape that allows the user to easily hold the digital camera 100 with their right hand. When the digital camera 100 is held by gripping the grip section 116 with the little finger, ring finger, and middle finger of the right hand, the shutter button 102 and main electronic dial 105 are located in positions that can be operated with the index finger of the right hand. In the same state, the sub electronic dial 107 and touch bar 115 are located in positions that can be operated with the thumb of the right hand. The lid 117 is a member that opens and closes a slot for inserting and removing the recording medium 250 into the digital camera 100.

[0026] The communication terminal 210 is an electrical contact point that enables the digital camera 100 to communicate with the lens unit 200. The eyepiece 216 is a peer-type eyepiece finder. The user can view an image displayed on an electronic viewfinder (EVF), which is an in-finder display unit 229, through the eyepiece 216, and can check the focus and composition of the subject image captured through the lens unit 200, which will be described later in FIG. 2.

[0027] The eyepiece detector 217 is disposed near the eyepiece 216 and can detect the approach of an object to the eyepiece 216. The eyepiece detector 217 is, for example, an infrared proximity sensor.

[0028] Thumb rest 119 (thumb standby position) is a grip member provided on the rear side of digital camera 100 at a position where it is easy to place the thumb of the right hand that is holding grip 116 when none of the operation members are being operated. Thumb rest 119 is made of a rubber member or the like to increase holding power (grip feeling).

[0029] Next, the internal configuration of the digital camera 100 and lens unit 200 of this embodiment will be described with reference to Fig. 2. In Fig. 2, components common to Fig. 1 are denoted by the same reference numerals.

[0030] 2, the lens unit 200 is equipped with a photographing lens 207 and is detachable from the digital camera 100. The photographing lens 207 is usually made up of multiple lenses, but here it is shown with only one lens for simplicity. The communication terminal 206 is an electrical contact that enables the lens unit 200 to communicate with the digital camera 100. The communication terminal 210 is an electrical contact that enables the digital camera 100 to communicate with the lens unit 200. The lens unit 200 communicates with the system control unit 201 via the communication terminal 206, and the built-in lens control unit 204 controls the aperture drive circuit 202 to drive the aperture 205 and controls the AF drive circuit 203 to change the position of the photographing lens 207, thereby adjusting the focus.

[0031] The focal plane shutter 221 can freely control the exposure time of the imaging unit 222 in accordance with instructions from the system control unit 201. The imaging unit 222 is an image sensor composed of imaging elements such as CCD or CMOS that convert a subject image into an electrical signal. The A / D converter 223 converts the analog signal output from the imaging unit 222 into a digital signal.

[0032] The image processing unit 224 performs predetermined pixel interpolation, resizing such as reduction, and color conversion processing on data from the A / D converter 223 or data from the memory control unit 215. The image processing unit 224 also performs predetermined arithmetic processing using the captured image data, and the system control unit 201 performs exposure control and distance measurement control based on the arithmetic results. This allows TTL (through-the-lens) type AF (autofocus) processing, AE (autoexposure) processing, and EF (flash pre-flash) processing to be performed. The image processing unit 224 also performs predetermined arithmetic processing using the captured image data, and also performs TTL type AWB (auto white balance) processing based on the arithmetic results.

[0033] The memory control unit 215 controls the exchange of data between the A / D converter 223, the image processing unit 224, and the memory 232. Digital data output from the A / D converter 223 is written to the memory 232 via the image processing unit 224 and the memory control unit 215, or directly via the memory control unit 215. The memory 232 stores image data obtained from the imaging unit 222 and the A / D converter 223, and image display data to be displayed on the rear display unit 101 or the in-finder display unit 229. The memory 232 has a storage capacity sufficient to store a predetermined number of still images and a predetermined length of moving images and audio. The memory 232 also serves as a memory for image display (video memory).

[0034] The D / A converter 219 converts image display data stored in the memory 232 into an analog signal and supplies it to the rear display unit 101 or the viewfinder display unit 229. The display image data written to the memory 232 is displayed on the rear display unit 101 or the viewfinder display unit 229 via the D / A converter 219. The rear display unit 101 or the viewfinder display unit 229 performs display on a display device according to the analog signal from the D / A converter 219. In this way, by converting the digital signal stored in the memory 232 into an analog signal and sequentially transferring and displaying it on the rear display unit 101 or the viewfinder display unit 229, it functions as an EVF that displays live view images (through-image display).

[0035] Various pieces of camera information such as shutter speed and aperture value at the time of shooting are displayed on the outside viewfinder display section 243 via an outside viewfinder display section drive circuit 244 .

[0036] The nonvolatile memory 256 is an electrically erasable and recordable memory, and may be, for example, a flash ROM. The nonvolatile memory 256 stores constants, programs, etc. for the operation of the system control unit 201. The programs referred to here are programs for executing the flowcharts described below.

[0037] The system control unit 201 is an arithmetic processing unit consisting of at least one processor and / or at least one circuit, and controls the entire digital camera 100. The system control unit 201 executes programs stored in a nonvolatile memory 256 to realize the processes in the flowcharts described below. The system memory 252, for example, is a RAM, and is also used as a work memory for storing constants and variables for the operation of the system control unit 201, and programs read from the nonvolatile memory 256. The system control unit 201 also performs display control (playback control) by controlling the memory 232, D / A converter 219, rear display unit 101, viewfinder display unit 229, etc., to generate and display data for display. Display control (playback control) can also generate display image data to be output to the display device 700. The system timer 253 is a timing unit that measures the time used for various controls and the time of a built-in clock.

[0038] The mode selector switch 103, first shutter switch 211, and second shutter switch 212 include switch circuits for inputting various instructions to the system control unit 201. The mode selector switch 103 switches the operation mode of the system control unit 201 between still image capture mode, video recording mode, and playback mode. The still image capture modes include, for example, auto capture mode, auto scene determination mode, manual mode, aperture priority mode (Av mode), shutter speed priority mode (Tv mode), and program AE mode (P mode). The still image capture modes also include, for example, various scene modes and custom modes that provide capture settings for different capture scenes.

[0039] The user can directly switch to one of these shooting modes by operating the mode selector switch 103. Alternatively, the user may first switch to a list screen of operation modes using the mode selector switch 103, then select one of the listed shooting modes and switch using other operating members. Similarly, the movie recording mode and playback mode may each include multiple modes.

[0040] The first shutter switch 211 is turned on and generates a first shutter switch signal SW1 when the shutter button 102 provided on the digital camera 100 is pressed halfway (a shooting preparation instruction) during operation. The first shutter switch signal SW1 starts shooting preparation operations such as AF (autofocus) processing, AE (auto exposure) processing, AWB (auto white balance) processing, and EF (pre-flash) processing.

[0041] The second shutter switch 212 is turned on when the shutter button 102 is fully pressed (photographing instruction) and generates a second shutter switch signal SW2. The system control unit 201 starts a series of photographing processing operations, from reading out a signal from the imaging unit 222 to writing the captured image to the recording medium 250 as an image file, in response to the second shutter switch signal SW2.

[0042] The operation unit 270 is made up of operation members such as various switches and buttons that accept various operations from the user and notify the system control unit 201, and includes at least the following operation members: a shutter button 102, a mode selector switch 103, a main electronic dial 105, a power switch 106, a sub electronic dial 107, a four-way key 108, a SET button 109, a video recording button 110, a zoom in / out button 111, an AE lock button 112, a playback button 113, a menu button 114, and a touch bar 115.

[0043] The power supply control unit 280 is configured with a battery detection circuit, a DC-DC converter, a switch circuit for switching between powered blocks, etc., and detects whether a battery is installed, the type of battery, and the remaining battery power. The power supply control unit 280 also controls the DC-DC converter based on the detection results and instructions from the system control unit 201, and supplies the required voltage for the required period to each unit, including the recording medium 250.

[0044] The power supply unit 230 is composed of a primary battery such as an alkaline battery or a lithium battery, a secondary battery such as a NiCd battery, a NiMH battery, or a lithium ion battery, an AC adapter, etc. The recording medium I / F 218 is an interface with a recording medium 250 such as a memory card or a hard disk. The recording medium 250 is a recording medium such as a memory card for recording captured images, and is composed of a semiconductor memory, a magnetic disk, etc.

[0045] The communication unit 254 is communicatively connected to an external device via a wireless antenna or a wired cable, and transmits and receives images and audio. The communication unit 254 can also be connected to a wireless LAN (Local Area Network) or the Internet. The communication unit 254 can transmit image data (including live view images) captured by the imaging unit 222 and image files recorded on the recording medium 250 to an external device, and can also receive image data and various other information from an external device. In this embodiment, the communication unit 254 has a connection unit that complies with HDMI (registered trademark). The display device 700 connected to the communication unit 254 via an HDMI-compliant cable can play and display live view images captured by the imaging unit 222 and images recorded on the recording medium 250. The communication unit 254 is not limited to a wireless LAN, and may also use a wireless communication module such as infrared communication, Bluetooth (registered trademark), Bluetooth (registered trademark) Low Energy, or Wireless USB.

[0046] The orientation detection unit 255 detects the orientation of the digital camera 100 with respect to the direction of gravity. Based on the orientation detected by the orientation detection unit 255, it is possible to determine whether an image captured by the imaging unit 222 was captured with the digital camera 100 held horizontally or vertically. The system control unit 201 can add orientation information corresponding to the orientation detected by the orientation detection unit 255 to the image file of the image captured by the imaging unit 222, or rotate and record the image. An acceleration sensor, a gyro sensor, or the like can be used as the orientation detection unit 255. By using an acceleration sensor or a gyro sensor, the orientation detection unit 255 can also detect movement of the digital camera 100 (panning, tilting, lifting, standing still, etc.).

[0047] The operation unit 270 includes a touch panel 270a capable of detecting touch operations on the rear display unit 101. The touch panel 270a and the rear display unit 101 can be configured as an integrated unit. For example, the touch panel 270a is configured so that its light transmittance does not interfere with the display on the rear display unit 101, and is attached to the upper layer of the display surface of the rear display unit 101. Input coordinates on the touch panel 270a are associated with display coordinates on the rear display unit 101. This allows for the configuration of a GUI that makes it appear as if the user can directly operate the screen displayed on the rear display unit 101. The system control unit 201 can detect taps, double taps, drags, flicks, pinch-in, pinch-out, swipes, and the like on the touch panel 270a. The touch panel 270a may be any of a variety of touch panel types, such as a resistive film type, a capacitance type, a surface acoustic wave type, an infrared type, an electromagnetic induction type, an image recognition type, and an optical sensor type. Depending on the method, there are methods that detect a touch by contact with the touch panel, and methods that detect a touch by the approach of a finger or pen to the touch panel, but either method is acceptable.

[0048] The eyepiece detection unit 217 detects whether the eye (object) is approaching (eye proximity) or moving away (eye distance) from the eyepiece unit 216 (approach detection). The system control unit 201 switches the display (display state) / non-display (non-display state) of the rear display unit 101 and the viewfinder display unit 229 depending on the state detected by the eyepiece detection unit 217. At least in shooting mode and when the display destination switching is automatic, the system control unit 201 sets the display destination to the rear display unit 101 when the eye is not in contact with the subject and sets the viewfinder display unit 229 to non-display. Furthermore, when the eye is in contact with the subject, the display destination is set to the viewfinder display unit 229 and sets the rear display unit 101 to non-display.

[0049] When an object approaches, infrared light emitted from a light-emitting unit (not shown) of the eyepiece detection unit 217 is reflected and incident on a light-receiving unit (not shown) of the infrared proximity sensor. The amount of incident infrared light received by the infrared proximity sensor can be used to detect the approach of an object to the eyepiece 216 and determine the distance (eyepiece distance) from the eyepiece 216 to which the object is approaching. When an object is detected approaching the eyepiece 216, the system control unit 201 can start displaying the viewfinder display unit 229. This allows the viewfinder display unit 229 to be displayed with as little delay as possible when the user looks through the eyepiece 216.

[0050] Furthermore, when the eyepiece detection unit 217 detects an object approaching within a predetermined distance from the eyepiece unit 216 from a non-eyepiece state (non-approach state), it determines that eyepiece detection has been detected, and transmits an eyepiece detection notification to the system control unit 201. When the object whose approach was detected from the eyepiece state (approach state) moves away by more than a predetermined distance, it determines that eyepiece separation has been detected, and transmits an eyepiece separation detection notification to the system control unit 201. The threshold for detecting eyepiece separation and the threshold for detecting eyepiece separation may be different, for example, by providing hysteresis. Furthermore, after detecting eyepiece separation, the eyepiece remains in the eyepiece state until eyepiece separation is detected. After detecting eyepiece separation, the eyepiece remains in the non-eyepiece state until eyepiece separation is detected. This allows the system control unit 201 to control the display of the rear display unit 101 and the viewfinder display unit 229 depending on the eyepiece state or eyepiece separation state detected by the eyepiece detection unit 217. The eyepiece detection unit 217 is not limited to an infrared proximity sensor, and other sensors that can detect the approach of an eye or an object that can be considered to be in eyepiece state may be used.

[0051] <Control processing> Next, with reference to FIGS. 3 to 11, a process for controlling the connection settings between the digital camera 100 and the display device 700 according to the number of displayed contents of this embodiment will be described.

[0052] First, the mode switching process performed by the digital camera 100 of this embodiment will be described with reference to FIG.

[0053] 3 is realized by the system control unit 201 loading a program stored in the nonvolatile memory 256 into the system memory 252, executing the program, and controlling each component of the digital camera 100. The process in FIG. 3 is started when the power to the digital camera 100 is turned on.

[0054] In step S302, the system control unit 201 determines whether the play button 113 has been pressed. If the system control unit 201 determines that the play button 113 has been pressed, the process proceeds to step S304. If the system control unit 201 determines that the play button 113 has not been pressed, the process proceeds to step S306. Note that when the power of the digital camera 100 is in an off state, the power of the digital camera 100 may be turned on in response to a long press of the play button 113, rather than the power switch 106. In that case, it may be determined in step S302 that the play button 113 has been pressed after the power has been turned on.

[0055] In step S304, the system control unit 201 starts a control process in the playback mode, which will be described later with reference to FIG.

[0056] In step S306, the system control unit 201 determines whether or not the menu button 114 has been pressed. If the system control unit 201 determines that the menu button 114 has been pressed, the process proceeds to step S308. If the system control unit 201 determines that the menu button 114 has not been pressed, the process proceeds to step S310.

[0057] In step S308, the system control unit 201 starts control processing in the menu mode, which will be described later with reference to FIG.

[0058] In step S310, the system control unit 201 determines whether the power switch 106 has been operated. If the system control unit 201 determines that the power switch 106 has been operated, it turns off the power and ends the process. If the system control unit 201 determines that the power switch 106 has not been operated, it proceeds to step S312.

[0059] In step S312, the system control unit 201 starts control processing in the shooting mode, which will be described later with reference to FIG.

[0060] <Control processing in shooting mode> Next, the photographing mode control process in step S312 of FIG. 3 will be described with reference to FIGS. 4 and 7(a).

[0061] FIG. 4 is a flowchart illustrating the control process of the shooting mode in step S312 of FIG.

[0062] FIG. 7(a) illustrates a state in which the digital camera 100 and the display device 700 are connected in the photographing mode.

[0063] As shown in FIG. 7A, the digital camera 100 and the display device 700 are connected by an HDMI-compliant cable 710. By connecting one end of the cable 710 to a connector located inside the terminal cover 104 of the digital camera 100 and the other end to the video input terminal of the display device 700, content output from the digital camera 100 can be displayed on the display device 700. When the digital camera 100 and the display device 700 are connected by the cable 710, the HDMI connection settings can be changed. In this embodiment, the HDMI connection settings are switched between a BT601 color gamut and sRGB gamma characteristic and a BT2020 color gamut and PQ gamma characteristic, depending on the display characteristics of the content to be transmitted to and displayed on the display device 700. Note that a connection setting other than these connection settings may also be switched to depending on the display characteristics of the content. Note that the content in this embodiment is video and still images generated by the digital camera 100, but is not limited to these and may be content other than images.

[0064] In step S401, the system control unit 201 sets the output destination and connection settings for the content. If the digital camera 100 and the display device 700 are not connected, the system control unit 201 sets the rear display unit 101 as the output destination. If the digital camera 100 and the display device 700 are connected, the system control unit 201 sets the display device 700 as the output destination. Furthermore, if the system control unit 201 sets the display device 700 as the output destination, it changes the connection settings between the digital camera 100 and the display device 700. The connection settings in the shooting mode are set with reference to the shooting parameters of the digital camera 100. For example, the shooting parameters are the color gamut and gamma characteristics.

[0065] In step S403, the system control unit 201 displays the live view image on the output destination set in step S401.

[0066] FIG. 7(a) illustrates a state in which a live view image 720 captured by the digital camera 100 is output to and displayed on the display device 700 via a cable 710 in the shooting mode.

[0067] In step S404, the system control unit 201 displays information related to shooting on the output destination set in step S401 as a display during shooting standby. In the example of Fig. 7(a), exposure parameters 721 are displayed as information related to shooting.

[0068] In step S406, the system control unit 201 determines whether a shooting instruction has been received. The system control unit 201 determines that a shooting instruction has been received when, for example, the shutter button 102 is fully pressed or the video recording button 110 is pressed. If the system control unit 201 determines that a shooting instruction has been received, the process proceeds to step S408. If the system control unit 201 determines that a shooting instruction has not been received, the process proceeds to step S410.

[0069] In step S408, the system control unit 201 starts the shooting process for generating content. For example, the system control unit 201 starts the still image shooting process when it determines that a still image shooting instruction has been received using the shutter button 102, and starts the video recording process when it determines that a video recording instruction has been received using the video recording button 110.

[0070] In step S410, the system control unit 201 determines whether an instruction to end the shooting mode has been received. The system control unit 201 determines that an instruction to end the shooting mode has been received, for example, when the menu button 114 is pressed to transition to menu mode, when the playback button 113 is pressed to transition to playback mode, or when the power switch 106 is operated. If the system control unit 201 determines that an instruction to shoot has been received, it ends the process. If the system control unit 201 determines that an instruction to shoot has not been received, it returns the process to step S406 and continues the shooting process.

[0071] <Control process in playback mode> Next, the playback mode control process in step S304 in FIG. 3 will be described with reference to FIGS.

[0072] FIG. 5 is a flowchart illustrating the control process of the playback mode in step S304 of FIG.

[0073] Figures 7(b) to 7(e) are diagrams illustrating the transition of connection settings when the operation mode of the digital camera 100 is switched from the shooting mode to the playback mode while the digital camera 100 and the display device 700 are connected.

[0074] By rotating the sub electronic dial 107 clockwise or counterclockwise, the user can set the content to be played (hereinafter also referred to as selected content) that is sequentially selected according to the direction of rotation.

[0075] In step S502, the system control unit 201 executes a process for playing and displaying the selected content, which will be described later with reference to FIG.

[0076] In step S504, the system control unit 201 determines whether an instruction to change the selected content has been received in response to operation of the sub electronic dial 107. If the system control unit 201 determines that an instruction to change the selected content has been received, the process proceeds to step S506. If the system control unit 201 determines that an instruction to change the selected content has not been received, the process proceeds to step S512.

[0077] In step S506, the system control unit 201 changes the selected content. The system control unit 201 determines the selected content from the content recorded on the recording medium 250 in accordance with the direction in which the sub electronic dial 107 is rotated.

[0078] In step S508, the system control unit 201 records the selected content determined in step S506 in the nonvolatile memory 256.

[0079] In step S510, the system control unit 201 executes a process for playing and displaying the selected content, which will be described later with reference to FIG.

[0080] In step S512, the system control unit 201 determines whether an instruction to enlarge the selected content has been received in response to operation of the zoom in / out button 111. If the system control unit 201 determines that an instruction to enlarge the selected content has been received, the process proceeds to step S514. If the system control unit 201 determines that an instruction to enlarge the selected content has not been received, the process proceeds to step S532.

[0081] In step S514, the system control unit 201 determines whether the number of displayed contents recorded in the nonvolatile memory 256 is more than one. The number of displayed contents is the number of contents (content count) simultaneously displayed on the screen of the rear display unit 101 or the display device 700. If the system control unit 201 determines that the number of displayed contents is more than one, the process proceeds to step S516. If the system control unit 201 determines that the number of displayed contents is not more than one, the process proceeds to step S524.

[0082] In step S516, system control unit 201 reduces the number of displayed contents. For example, if the number of displayed contents is 9, 4, or 1, and the current number of displayed contents is 9, system control unit 201 determines the new number of displayed contents to be 4, which is less than 9. Here, the four displayed contents consist of the selected content and the contents before and after the selected content.

[0083] In step S518, the system control unit 201 records the number of content items to be displayed determined in step S516 in the nonvolatile memory 256.

[0084] In step S520, the system control unit 201 executes a process for playing and displaying the selected content, which will be described later with reference to FIG.

[0085] In step S524, the system control unit 201 increases the enlargement factor of the selected content. For example, if the enlargement factor patterns are 1x (no enlargement), 2x, 4x, 6x, 8x, and 10x, and the current enlargement factor is 4x, the system control unit 201 determines that the next enlargement factor will be 6x, which is greater than 4x.

[0086] In step S526, the system control unit 201 records the enlargement ratio determined in step S524 in the nonvolatile memory 256.

[0087] In step S528, the system control unit 201 enlarges the selected content at the enlargement factor determined in step S524 and displays it on the output destination.

[0088] In step S532, the system control unit 201 determines whether an instruction to reduce the selected content has been received in response to operation of the AE lock button 112. If the system control unit 201 determines that an instruction to reduce the selected content has been received, the process proceeds to step S534. If the system control unit 201 determines that an instruction to reduce the selected content has not been received, the process proceeds to step S552.

[0089] In step S534, the system control unit 201 determines whether the selected content is being enlarged. If the system control unit 201 determines that the selected content is being enlarged, the process proceeds to step S544. If the system control unit 201 determines that the selected content is not being enlarged, the process proceeds to step S536.

[0090] In step S536, system control unit 201 increases the number of displayed contents stored in nonvolatile memory 256. For example, if the pattern of the number of displayed contents is 9, 4, and 1, and the current number of displayed contents is 4, system control unit 201 determines that the new number of displayed contents is 9, which is more than 4. Here, the 9 displayed contents are made up of the selected content and the contents before and after the selected content.

[0091] In step S538, the system control unit 201 records the number of content items to be displayed determined in step S536 in the nonvolatile memory 256.

[0092] In step S540, system control unit 201 executes a process for playing and displaying the selected content, which will be described later with reference to FIG.

[0093] In step S544, the system control unit 201 decreases the enlargement factor of the selected content. For example, if the enlargement factor patterns are 1x (no enlargement), 2x, 4x, 6x, 8x, and 10x, and the current enlargement factor is 4x, the system control unit 201 determines that the next enlargement factor will be 2x, which is smaller than 4x.

[0094] In step S546, the system control unit 201 records the enlargement ratio determined in step S544 in the nonvolatile memory 256.

[0095] In step S548, the system control unit 201 enlarges the selected content at the enlargement factor determined in step S544 and displays it on the output destination.

[0096] In step S552, the system control unit 201 determines whether or not the cable 710 is connected to a connector arranged inside the terminal cover 104. If the system control unit 201 determines that the cable 710 is connected to a connector arranged inside the terminal cover 104, the process proceeds to step S554. If the system control unit 201 determines that the cable 710 is not connected to a connector arranged inside the terminal cover 104, the process proceeds to step S556. Note that the determination of whether or not the cable 710 is connected to a connector arranged inside the terminal cover 104 may include a determination of whether or not the cable 710 has been unplugged from the connector.

[0097] In step S554, the system control unit 201 executes a process for playing and displaying the selected content, which will be described later with reference to FIG.

[0098] In step S556, the system control unit 201 determines whether an instruction to end the playback mode has been accepted. The system control unit 201 determines that an instruction to end the playback mode has been accepted, for example, when the menu button 114 is pressed to transition to menu mode, when the mode selector switch 103 is pressed to transition to shooting mode, or when the power switch 106 is operated. If the system control unit 201 determines that an instruction to end the playback mode has been accepted, it ends the process. If the system control unit 201 determines that an instruction to end the playback mode has not been accepted, the process returns to step S504.

[0099] <Playback and display process for selected content> Next, the playback and display process of the selected content in steps S502, S510, S520, S540, and S554 of FIG. 5 will be described with reference to FIG.

[0100] FIG. 6 is a flowchart illustrating the playback and display process of the selected content in steps S502, S510, S520, S540, and S554 of FIG.

[0101] In step S602, the system control unit 201 acquires information about the selected content. The information about the selected content includes, for example, image data (original image / thumbnail) and information about the color gamut / gamma characteristics at the time of shooting. For example, content with a color gamut of BT601 and a gamma of sRGB is SDR (Standard Dynamic Range) content recorded in a file format such as JPEG. The information about SDR content is information about BT601 and sRGB. Content with a color gamut of BT2020 and a gamma of PQ is HDR (High Dynamic Range) content recorded in a file format such as HEIF. The information about HDR content is information about BT2020 and PQ.

[0102] In step S604, the system control unit 201 determines whether the number of displayed contents recorded in the nonvolatile memory 256 is more than one. If the system control unit 201 determines that the number of displayed contents is more than one, the process proceeds to step S606. If the system control unit 201 determines that the number of displayed contents is not more than one, the process proceeds to step S618. Note that the meaning of the number of displayed contents recorded in the nonvolatile memory 256 differs depending on when the playback and display process for the selected content in FIG. 6 was executed, among steps S502, S510, S520, S540, and S554 in FIG. 5.

[0103] In step S502 of Fig. 5, playback and display processing of the selected content is executed when switching from shooting mode to playback mode, and therefore the number of displayed contents that were played back the previous time playback mode was executed (when playback mode ended the previous time) is recorded in nonvolatile memory 256. In step S554 of Fig. 5, playback and display processing of the selected content is executed in accordance with the connection of cable 710, and therefore the number of displayed contents that are being played back in playback mode when cable 710 is connected is recorded in nonvolatile memory 256. In steps S510, S520, and S540 of Fig. 5, the number of displayed contents that are currently being played back in playback mode is recorded in nonvolatile memory 256.

[0104] In step S606, the system control unit 201 determines whether or not the cable 710 is connected to the connector disposed inside the terminal cover 104. If the system control unit 201 determines that the cable 710 is connected to the connector disposed inside the terminal cover 104, the process proceeds to step S610. If the system control unit 201 determines that the cable 710 is not connected to the connector disposed inside the terminal cover 104, the process proceeds to step S612. Note that the determination of whether or not the cable 710 is connected to the connector disposed inside the terminal cover 104 may include a determination of whether or not the cable 710 has been unplugged from the connector. Alternatively, if the digital camera 100 and the display device 700 are connected and the power of the digital camera 100 is turned on by pressing and holding the playback button 113, the system control unit 201 may determine that the cable 710 is connected to the connector disposed inside the terminal cover 104.

[0105] In step S610, the system control unit 201 changes the connection settings between the digital camera 100 and the display device 700 to connection settings appropriate for the selected content. Note that, if the playback and display process for the selected content in FIG. 6 is executed in step S502 of FIG. 5, step S610 is skipped. FIG. 7B illustrates an example of a state in which the connection settings are being changed. For example, if the color gamut and gamma characteristics of the selected content are BT601 and sRGB, respectively, the color gamut in the connection settings is changed to BT601, and the gamma characteristics are changed to sRGB. Also, if the color gamut and gamma of the selected content are BT2020 and PQ, respectively, the color gamut in the connection settings is changed to BT2020, and the gamma characteristics are changed to PQ. The display device 700 switches to a mode in which the selected content can be displayed with the changed connection settings. FIG. 7B illustrates the display state of the display device 700 while the connection settings are being changed, with the screen 722 being blacked out.

[0106] In step S612, system control unit 201 acquires information on content other than the selected content, the number of pieces of information corresponding to the number of displayed content pieces recorded in non-volatile memory 256. For example, if the number of displayed content pieces is four, system control unit 201 acquires information on the remaining three pieces of content pieces excluding the selected content piece.

[0107] In step S614, the system control unit 201 renders the image data (thumbnail) of the selected content acquired in step S602 and the image data (thumbnail) of content other than the selected content acquired in step S612 in the memory 232. Note that if the image data includes image data with a higher resolution than the thumbnail, that image data may be rendered. The number of contents recorded in the non-volatile memory 256 that are to be displayed is rendered.

[0108] In step S618, similar to step S610, the system control unit 201 changes the connection settings between the digital camera 100 and the display device 700 to connection settings suitable for the selected content.

[0109] In step S620, the system control unit 201 obtains the enlargement factor recorded in the nonvolatile memory 256.

[0110] In step S622, the system control unit 201 determines whether the selected content is a still image. If the system control unit 201 determines that the selected content is a still image, the process proceeds to step S626. If the system control unit 201 determines that the selected content is not a still image, the process proceeds to step S624.

[0111] In step S624, system control unit 201 renders the first frame data of the video, which is the selected content, that has been image processed based on the magnification ratio acquired in step S620, in memory 232. Since the number of contents to be displayed recorded in non-volatile memory 256 is 1, one content is rendered.

[0112] In step S626, system control unit 201 renders the image data (original image data) of the still image, which is the selected content, that has been image processed based on the enlargement ratio acquired in step S602, in memory 232. Since the number of content items to be displayed recorded in nonvolatile memory 256 is 1, one content item is rendered.

[0113] In step S627, the system control unit 201 displays information about the selected content on the display device 700, as shown in FIG. 9(e). FIG. 9(e) illustrates a state in which, in playback mode, multiple contents, including the selected content, are output to and displayed on the display device 700 via the cable 710. Item 950 indicates the total number of contents recorded on the recording medium 250 and the number of the selected content. Icon 940 indicates that the connection settings for the selected content match the current connection settings. Note that if the current connection settings are suitable for the selected content, icon 940 may be displayed while one content is being displayed, as shown in FIG. 9(d).

[0114] In step S628, the system control unit 201 determines whether the digital camera 100 is connected to the display device 700 via the cable 710. If the system control unit 201 determines that the digital camera 100 is connected to the display device 700 via the cable 710, the process proceeds to step S632. If the system control unit 201 determines that the digital camera 100 is not connected to the display device 700 via the cable 710, the process proceeds to step S630.

[0115] In step S630, the system control unit 201 outputs the image data drawn in the memory 232 to the rear display unit 101.

[0116] In step S632, the system control unit 201 outputs the image data drawn in the memory 232 to the display device 700.

[0117] FIG. 7(c) illustrates a state in which one selected content 730 is output from the digital camera 100 via the cable 710 to the display device 700 and displayed in the playback mode.

[0118] 7(a), where the digital camera 100 and display device 700 are connected, consider the case where the operating mode of the digital camera 100 is switched from shooting mode to playback mode (steps S410, S304, S502). In this case, because the current number of displayed contents stored in the nonvolatile memory 256 is one (NO in step S604), the connection settings are changed (step S618), and the screen 722 of the display device 700 transitions to a blackout state as shown in FIG. 7(b). Thereafter, the selected content 730 is displayed on the display device 700 with the changed connection settings as shown in FIG. 7(c) (step S632).

[0119] Fig. 7(d) illustrates a state in which, in the shooting mode, a live view image 720 captured by the digital camera 100 is output to and displayed on the display device 700 via the cable 710. Fig. 7(e) illustrates a state in which, in the playback mode, four pieces of content 740 are output from the digital camera 100 to the display device 700 via the cable 710 and displayed.

[0120] Consider the case where the operation mode of the digital camera 100 is switched from the shooting mode to the playback mode (steps S410, S304, S502) in the state shown in Fig. 7(d) in which the digital camera 100 and the display device 700 are connected. In this case, since the number of currently displayed contents recorded in the nonvolatile memory 256 is multiple (four) (YES in step S604), the connection settings are not changed (step S610 is not executed), and multiple contents 740 are displayed on the display device 700 (step S632) as shown in Fig. 7(e). In the screen transition from Fig. 7(d) to Fig. 7(e), the previous connection settings are maintained and are not changed, so the screen does not transition to the blackout state shown in Fig. 7(b).

[0121] In this way, when the number of currently displayed contents in playback mode is multiple, the already set connection settings are maintained without changing the connection settings, thereby preventing a decrease in operability due to a change in the connection settings. Also, when the number of currently displayed contents in playback mode is one, the quality of the content can be faithfully reproduced by changing the connection settings to suit the selected content.

[0122] FIG. 8 is a diagram illustrating the transition of connection settings when the selected content is changed in the playback mode.

[0123] In the example of FIG. 8, it is assumed that selected content 810 is HDR content and selected content 820 is SDR content.

[0124] FIG. 8(a) illustrates a state in which one selected content 810 is output to and displayed on the display device 700 via the cable 710 in playback mode. Consider a case in which the digital camera 100 and the display device 700 are connected and the selected content 810 is being displayed in the state shown in FIG. 8(a) when the selected content is changed (steps S506, S508, and S510). In this case, because the number of currently displayed contents stored in the nonvolatile memory 256 is one (NO in step S604), the connection settings are changed to those appropriate for the changed selected content 820 (step S618), and the screen 812 of the display device 700 transitions to a blackout state as shown in FIG. 8(b). Thereafter, the selected content 802 is displayed on the display device 700 using the connection settings appropriate for the selected content 820 as shown in FIG. 8(c).

[0125] 8(d) and 8(e) show an example of a state in which, in playback mode, four pieces of content 830 are output to and displayed on the display device 700 via the cable 710. In FIG. 8(d), a selection frame 840 indicating the selected content is displayed on the content 810.

[0126] Consider the case where the selected content is changed (steps S506, S508, S510) in the state of FIG. 8(d) in which digital camera 100 and display device 700 are connected and four pieces of content 830 are being displayed. In this case, because the number of currently displayed contents recorded in non-volatile memory 256 is multiple (four) (YES in step S604), the connection settings are not changed (step S606), and multiple pieces of content 830 are displayed on display device 700 (step S632) as shown in FIG. 8(e). In FIG. 8(e), a selection frame 840 indicating the selected content is displayed on content 820. In the screen transition from FIG. 8(d) to FIG. 8(e), the previous connection settings are maintained and are not changed, so the screen does not transition to the blackout state shown in FIG. 8(b).

[0127] In this way, when the number of currently displayed contents in playback mode is multiple, if the selected content is changed, the connection settings that have already been set are maintained without changing them, thereby suppressing degradation of operability due to changes in the connection settings. Also, when the number of currently displayed contents in playback mode is one, if the selected content is changed, the connection settings are changed to suit the selected content, thereby faithfully representing the quality of the content.

[0128] FIG. 9 is a diagram illustrating the transition of connection settings when the number of displayed contents is changed in the playback mode.

[0129] Fig. 9(a) illustrates a state in which, in playback mode, four pieces of content 910 are output to and displayed on the display device 700 via the cable 710. In Fig. 9(a), a selection frame 930 indicating the selected content is displayed on the content 920. The state in Fig. 9(a) is a case in which the connection settings are not suitable for the selected content 920, and when there are multiple pieces of content to display, the selected content is changed to the content 920, and the connection settings are not changed (Figs. 8(d) and 8(e)).

[0130] Consider a case where the number of displayed contents is changed from four to one (steps S516, S518, S520) while the digital camera 100 and the display device 700 are connected as shown in FIG. 9(a). In this case, because the current number of displayed contents recorded in the non-volatile memory 256 is one (NO in step S604), the connection settings are changed (step S618), and the screen 932 of the display device 700 transitions to a blackout state as shown in FIG. 9(b). Thereafter, the changed selected content 920 is displayed on the display device 700 with connection settings suitable for the selected content 920 as shown in FIG. 9(c). Note that if the connection settings before the change were suitable for the selected content 920, the connection settings may not be changed and the display device 700 may be controlled so that the screen does not transition to a blackout state.

[0131] Fig. 9(d) illustrates a state in which, in playback mode, one selected content 920 is output to and displayed on the display device 700 via the cable 710. Fig. 9(e) illustrates a state in which, in playback mode, four contents 910 are output to and displayed on the display device 700 via the cable 710. In Fig. 9(e), a selection frame 930 indicating the selected content is displayed on the content 920.

[0132] Consider the case where the number of displayed contents is changed from one to four (steps S536, S538) while the digital camera 100 and the display device 700 are connected as shown in FIG. 9(d). In this case, because the current number of displayed contents recorded in the nonvolatile memory 256 is multiple (four), the connection settings are not changed and multiple contents 910 are displayed on the display device 700 (step S540), as shown in FIG. 9(e). In the example of FIG. 9(e), a selection frame 930 is displayed around the selected content 920. Furthermore, because the selected content 920 is not changed and the previous connection settings are maintained, an icon 940 is displayed indicating that the connection settings are suitable for the selected content 920.

[0133] In this way, when the number of displayed contents in playback mode is changed from one to multiple, the connection settings are not changed but the existing connection settings are maintained, thereby preventing a decrease in operability due to the change in connection settings. Also, when the number of displayed contents in playback mode is changed from multiple to one, the quality of the content can be faithfully reproduced by changing the connection settings to suit the selected content.

[0134] When digital camera 100 and display device 700 are connected during playback mode (steps S522, S606), regardless of whether the number of currently displayed contents recorded in non-volatile memory 256 is one or multiple (step S604), the connection settings may be changed to those suitable for the selected content (steps S610, S618), and the screen of display device 700 may transition to a blackout state, after which the selected content may be displayed on display device 700.

[0135] Furthermore, if the content of the connection settings remains unchanged before and after the change of the connection settings, the display device 700 may be controlled so that the screen of the display device 700 does not transition to a blackout state.

[0136] <Control processing in menu mode> Next, the control process of the menu mode in step S308 of FIG. 3 will be described with reference to FIGS.

[0137] FIG. 10 is a flowchart illustrating the control process of the menu mode in step S308 of FIG.

[0138] FIG. 11 is a diagram illustrating the transition of connection settings when the operation mode of the digital camera 100 is switched from the menu mode to the playback mode while the digital camera 100 and the display device 700 are connected.

[0139] In step S1002, the system control unit 201 outputs and displays the menu screen 1110 shown in FIG. 11(a) on the rear display unit 101 or the display device 700, which is the output destination.

[0140] In step S1004, the system control unit 201 determines whether an instruction to move a selected item on the menu screen 1110 shown in Fig. 11(a) has been accepted in response to operation of the four-way key 108. If the system control unit 201 determines that an instruction to move a selected item has been accepted, the process proceeds to step S1005. If the system control unit 201 determines that an instruction to move a selected item has not been accepted, the process proceeds to step S1006.

[0141] In step S1005, the system control unit 201 changes the selected item by moving the selection frame on the menu screen 1110 shown in Fig. 11(a). In the example of Fig. 11(a), if the selection frame 1120 is displayed on the item for image quality, the selection frame 1120 moves to the item for image size in response to an instruction to move the selection item.

[0142] In step S1006, the system control unit 201 determines whether an instruction to change the settings of the digital camera 100 has been received in response to operation of the sub electronic dial 107. If the system control unit 201 determines that an instruction to change the settings of the digital camera 100 has been received, the process proceeds to step S1008. If the system control unit 201 determines that an instruction to change the settings of the digital camera 100 has not been received, the process proceeds to step S1010.

[0143] In step S1008, the system control unit 201 changes the setting value corresponding to the selected item whose selection frame is displayed on the menu screen 1110 shown in FIG. 11(a).

[0144] In the example of FIG. 11(a), the setting value of the exposure parameter for exposure compensation, for which a selection frame 1120 is displayed, is changed in response to a setting change instruction.

[0145] In step S1010, the system control unit 201 determines whether an instruction to end the menu mode has been received. The system control unit 201 determines that an instruction to end the menu mode has been received when, for example, the menu button 114 is pressed, the playback button 113 is pressed to transition to playback mode, the mode selector switch 103 is pressed to transition to shooting mode, or the power switch 106 is operated. If the system control unit 201 determines that an instruction to end the menu mode has been received, it ends the process. If the system control unit 201 determines that an instruction to end the menu mode has not been received, the process returns to step S1004.

[0146] Figure 11(c) illustrates a state in which, when the operating mode of the digital camera 100 is switched from menu mode to playback mode, one selected content 1130 is output from the digital camera 100 to the display device 700 via the cable 710 and displayed.

[0147] Consider the case where the digital camera 100 and the display device 700 are connected as shown in FIG. 11(a) and the mode is switched from menu mode to playback mode (steps S1010, S304, S502). In this case, because the number of currently displayed contents stored in the nonvolatile memory 256 is one (NO in step S604), the connection settings are changed (step S618), and the screen 1122 of the display device 700 transitions to a blackout state as shown in FIG. 11(b). Thereafter, the selected content 1130 is displayed on the display device 700 as shown in FIG. 11(c) (step S632). Note that if the connection settings before the change were suitable for the selected content 1130, the display device 700 may be controlled so that the screen does not transition to a blackout state without changing the connection settings.

[0148] Fig. 11(d) illustrates a state in which a menu screen 1110 is displayed on the display device 700. Fig. 11(e) illustrates a state in which, in playback mode, four pieces of content 1140 are output from the digital camera 100 via the cable 710 and displayed on the display device 700. In Fig. 11(e), a selection frame 1150 indicating the selected content is displayed on the content 1130.

[0149] Consider the case where the digital camera 100 and display device 700 are connected as shown in Fig. 11(d) and the mode is switched from menu mode to playback mode (steps S1010, S304, S502). In this case, the number of currently displayed contents recorded in non-volatile memory 256 is multiple (four) (YES in step S604), so the connection settings are changed (step S606), and four contents 1140 are displayed on the display device 700 in playback mode (step S632), as shown in Fig. 11(e). In the screen transition from Fig. 11(d) to Fig. 11(e), the previous connection settings are maintained and are not changed, so the screen does not transition to the blackout state shown in Fig. 11(b).

[0150] In this way, when the number of currently displayed contents in playback mode is multiple, the already set connection settings are maintained without changing the connection settings, thereby preventing a decrease in operability due to a change in the connection settings. Also, when the number of displayed contents in playback mode is one, the quality of the content can be faithfully reproduced by changing the connection settings to suit the selected content.

[0151] Note that when digital camera 100 and display device 700 are connected and playback button 113 is pressed and held to turn on digital camera 100 (steps S302, S304, and S502), whether the number of content currently being displayed stored in nonvolatile memory 256 is one or multiple (step S604), the connection settings may be changed to those appropriate for the selected content (steps S610 and S618), and after the screen of display device 700 transitions to a blackout state, the selected content may be displayed on display device 700. Also, when transitioning from shooting mode or playback mode to menu mode, the connection settings may not be changed.

[0152] [Other embodiments] The present invention can also be realized by supplying a program that realizes one or more functions of the above-described embodiments to a system or device via a network or a storage medium, and having one or more processors in the computer of the system or device read and execute the program. It can also be realized by a circuit (e.g., ASIC) that realizes one or more functions.

[0153] The invention is not limited to the above-described embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention.

[0154] The disclosure of this specification includes the following imaging device, control method, and program. [Configuration 1] An imaging device, a mode switching means for switching between a plurality of operation modes including a photographing mode and a playback mode; a control unit for controlling setting information relating to display characteristics of content, which is set in the imaging device and a display device connected to the imaging device; When the operation mode of the imaging device is switched from the shooting mode to the playback mode, the control means When there is one content to be played in the playback mode, control is performed to change the setting information to one corresponding to the content to be played; When a plurality of contents are to be played in the playback mode, control is performed so that the setting information corresponding to the contents to be played is not changed. An imaging device characterized by: [Configuration 2] When there are a plurality of contents to be reproduced in the reproduction mode, the control means maintains the setting information that has already been set. 2. The imaging device according to claim 1, [Configuration 3] a playback control means for controlling the content to be played back in the playback mode; the playback control means controls the image capture device to play back the number of contents that were being played back when the playback mode was previously terminated, when the operation mode of the image capture device is switched from the shooting mode to the playback mode. 3. The imaging device according to configuration 1 or 2. [Configuration 4] a setting unit for setting the number of contents to be reproduced, and a selection unit for selecting the contents to be reproduced; 4. The imaging device according to any one of configurations 1 to 3. [Configuration 5] the control means, in the playback mode, when the number of contents to be played back is changed from a plurality of contents to one, changes the setting information to setting information suitable for the content to be played back, and when the number of contents to be played back is changed from one to a plurality of contents, maintains the setting information that has already been set. 5. The imaging device according to configuration 4. [Configuration 6] When the content to be reproduced is changed by the selection means in the reproduction mode, the control means changes the setting information to setting information suitable for the content to be reproduced if the number of contents to be reproduced is one, and maintains the setting information that has already been set if the number of contents to be reproduced is two or more. 5. The imaging device according to configuration 4. [Configuration 7] the control means transitions to the playback mode when the power of the imaging device is turned on by a predetermined operation member, and controls the setting information in accordance with the content to be played back. 7. The imaging device according to any one of configurations 1 to 6, wherein: [Configuration 8] the predetermined operation member is an operation member for switching the operation mode of the imaging device to the playback mode, 8. The imaging device according to configuration 7. [Configuration 9] the control means transitions from the shooting mode to the playback mode in response to the display device being connected to the imaging device, and controls the setting information in response to the content to be played back. 7. The imaging device according to any one of configurations 1 to 6, wherein: [Configuration 10] the control means transitions to the playback mode when the imaging device is powered on, and controls the setting information in accordance with the content to be played back. 10. The imaging device according to any one of configurations 1 to 9. [Configuration 11] When enlarging the content to be reproduced, the control means reduces the number of contents to be reproduced if there are multiple contents to be reproduced, and enlarges the number of contents to be reproduced if there is only one content to be reproduced. 11. The imaging device according to any one of configurations 1 to 10. [Configuration 12] When reducing the content to be played back, the control means increases the content to be played back if the content to be played back is not enlarged, and reduces the content to be played back if the content to be played back is enlarged. 11. The imaging device according to any one of configurations 1 to 10. [Configuration 13] the control means, when there are a plurality of contents to be played back and the contents are images, outputs thumbnails of the images to the display device, and when there is one content to be played back and the content is an image, outputs the image to the display device; 13. The imaging device according to any one of configurations 1 to 12. [Configuration 14] the image includes a still image or a video image; the control means outputs the still image to the display device when the content to be played is one and the content is a still image, and outputs the first frame of the video to the display device when the content to be played is a video; 14. The imaging device according to configuration 13. [Configuration 15] the control means controls the content to be played back so that information indicating whether the setting information is suitable for the content to be played back is displayed on the content to be played back. 15. The imaging device according to any one of configurations 1 to 14. [Configuration 16] an imaging means for capturing an image; the control means outputs the image captured by the imaging means to the display device in the photography mode; 16. The imaging device according to any one of configurations 1 to 15. [Configuration 17] the operation modes of the imaging device include a menu mode for changing settings of the imaging device; when the operation mode of the imaging device is switched from the menu mode to the playback mode, if there is one content to be played back, the control means changes the setting information to one corresponding to the content to be played back; If there are multiple contents to be played back, control is performed so that the setting information is not changed according to the contents to be played back. 17. The imaging device according to any one of configurations 1 to 16, [Configuration 18] the control means outputs the content to be played back to a display unit included in the imaging device when the display device is not connected to the imaging device; 17. The imaging device according to any one of configurations 1 to 16, [Configuration 19] The screen of the display device is in a blackout state while the setting information is being changed. 19. The imaging device according to any one of configurations 1 to 18, [Configuration 20] The display characteristics include a representable color gamut and gamma characteristics of the content. 20. The imaging device according to any one of configurations 1 to 19, [Configuration 21] The content includes HDR (High Dynamic Range) content and SDR (Standard Dynamic Range) content, The color gamut and gamma characteristics of the SDR content are BT601 and sRGB, and the color gamut and gamma characteristics of the HDR content include BT2020 and PQ; 21. The imaging device according to configuration 20. [Configuration 22] the imaging device and the display device are connected by an HDMI (registered trademark) cable, The setting information is an HDMI connection setting. 22. The imaging device according to any one of configurations 1 to 21, [Configuration 23] A control method for an imaging device, comprising: switching to one of a plurality of operation modes including a photographing mode and a playback mode; and controlling setting information relating to display characteristics of content to be set in the imaging device and a display device connected to the imaging device, In the controlling step, when the operation mode of the imaging device is switched from the shooting mode to the playback mode, When there is one content to be played in the playback mode, control is performed to change the setting information to one corresponding to the content to be played; When there are a plurality of contents to be reproduced in the reproduction mode, control is performed so that the setting information is not changed according to the contents to be reproduced. A control method comprising: [Configuration 24] A program for causing a computer to function as the imaging device according to any one of configurations 1 to 22. [Explanation of symbols]

[0155] 100... digital camera, 101... display unit, 102... shutter button, 106... power switch, 110... video recording button, 113... playback button, 114... menu button, 201... system control unit, 700... display device

Claims

1. An imaging device, a mode switching means for switching between a plurality of operation modes including a photographing mode and a playback mode; a control unit for controlling connection setting information relating to display characteristics of content, the connection setting information being set in the imaging device and a display device connected to the imaging device; The control means When the mode is switched from the shooting mode to the playback mode, if one content is to be displayed on the display device, control is performed to change the connection setting information to one corresponding to the content to be displayed on the display device; When the image capturing mode is switched to the playback mode, if a plurality of contents are to be simultaneously displayed on the display device, control is performed so that the connection setting information is not changed in accordance with the contents to be displayed on the display device; When a predetermined operation member is used to instruct the imaging device to be powered on and the imaging device is operated in the playback mode, control is performed so that connection setting information is set in accordance with the content to be displayed on the display device, regardless of the number of contents to be displayed on the display device. An imaging device characterized by:

2. when the mode is switched from the shooting mode to the playback mode, if a plurality of contents are to be simultaneously displayed on the display device, the control means maintains the connection setting information that has already been set.

2. The imaging device according to claim 1.

3. When a plurality of contents are simultaneously displayed on the display device, the control means: When the mode is switched from the shooting mode to the playback mode, control is performed so that the connection setting information is not changed according to the content to be displayed on the display device; When the selected content is changed in the playback mode, control is performed to change the connection setting information according to the selected content.

2. The imaging device according to claim 1.

4. a display control means for controlling the content to be displayed on the display device in the playback mode; the display control means controls, when the mode is switched from the shooting mode to the playback mode, to display the number of contents that was displayed when the playback mode was previously terminated.

2. The imaging device according to claim 1.

5. a setting unit for setting the number of contents to be displayed on the display device; 2. The imaging device according to claim 1.

6. the control means, in the playback mode, when the number of contents to be displayed on the display device is changed from a plurality of contents to one, changes the connection setting information to connection setting information suitable for the contents to be displayed on the display device, and when the number of contents to be displayed on the display device is changed from one to a plurality of contents, maintains the connection setting information that has already been set.

6. The imaging device according to claim 5.

7. When the content to be displayed on the display device is changed in the playback mode, the control means changes the connection setting information to connection setting information suitable for the content to be displayed on the display device if the number of contents to be displayed on the display device is one, and maintains the setting information that has already been set if the number of contents to be displayed on the display device is multiple.

2. The imaging device according to claim 1.

8. the predetermined operation member is an operation member for switching the operation mode of the imaging device to the playback mode, 2. The imaging device according to claim 1.

9. When switching from the shooting mode to the playback mode, if multiple contents are displayed simultaneously on the display device, the control means controls the display device not to change the connection setting information according to the contents to be displayed, in order to prevent the display device from going into a blackout state.

2. The imaging device according to claim 1.

10. the control means transitions from the shooting mode to the playback mode in response to the display device being connected to the imaging device, and controls the connection setting information in response to content to be displayed on the display device.

2. The imaging device according to claim 1.

11. the control means transitions to the playback mode when the imaging device is powered on, and controls the connection setting information in accordance with content to be displayed on the display device.

2. The imaging device according to claim 1.

12. when enlarging the content to be displayed on the display device, the control means reduces the number of contents to be displayed on the display device if there are multiple contents to be displayed on the display device, and enlarges the content to be displayed on the display device if there is only one content to be displayed on the display device; 2. The imaging device according to claim 1.

13. When reducing the content to be displayed on the display device, the control means increases the number of contents to be displayed on the display device if the content to be displayed on the display device is not enlarged, and reduces the content to be displayed on the display device if the content to be displayed on the display device is enlarged.

2. The imaging device according to claim 1.

14. the control means outputs a thumbnail of the image to the display device when the number of contents to be displayed on the display device is multiple and the contents are images, and outputs the image to the display device when the number of contents to be displayed on the display device is one and the content is an image; 2. The imaging device according to claim 1.

15. the image includes a still image or a video image; the control means outputs the still image to the display device when there is one content to be displayed on the display device and the content is a still image, and outputs the first frame of the moving image to the display device when the content to be displayed on the display device is a moving image; 15. The imaging device according to claim 14.

16. the control means controls the display device to display information indicating whether the connection setting information is suitable for the content to be displayed on the display device, in the content to be displayed on the display device; 2. The imaging device according to claim 1.

17. an imaging unit that captures an image; the control means outputs the image captured by the imaging unit to the display device in the imaging mode; 2. The imaging device according to claim 1.

18. the operation modes of the imaging device include a menu mode for changing settings of the imaging device; when the operation mode of the imaging device is switched from the menu mode to the playback mode, if there is only one content to be displayed on the display device, the control means changes the connection setting information to one corresponding to the content to be displayed on the display device; When the number of contents to be displayed on the display device is plural, control is performed so that the connection setting information is not changed according to the contents to be displayed on the display device.

2. The imaging device according to claim 1.

19. the control means outputs the content to be displayed on the display device to a display unit included in the imaging device when the display device is not connected to the imaging device; 2. The imaging device according to claim 1.

20. The screen of the display device is in a blackout state while the connection setting information is being changed.

2. The imaging device according to claim 1.

21. The display characteristics include a representable color gamut and gamma characteristics of the content.

2. The imaging device according to claim 1.

22. The content includes HDR (High Dynamic Range) content and SDR (Standard Dynamic Range) content, The color gamut and gamma characteristics of the SDR content are BT601 and sRGB, and the color gamut and gamma characteristics of the HDR content include BT2020 and PQ; 22. The imaging device according to claim 21.

23. the imaging device and the display device are connected by an HDMI (registered trademark) cable; The connection setting information is an HDMI connection setting.

2. The imaging device according to claim 1.

24. A control method for an imaging device, comprising: switching to one of a plurality of operation modes including a photographing mode and a playback mode; controlling connection setting information relating to display characteristics of content, which is set in the imaging device and a display device connected to the imaging device; In the controlling step, When the mode is switched from the shooting mode to the playback mode, if one content is to be displayed on the display device, control is performed to change the connection setting information to one corresponding to the content to be displayed on the display device; When the image capturing mode is switched to the playback mode, if a plurality of contents are to be simultaneously displayed on the display device, control is performed so that the connection setting information is not changed in accordance with the contents to be displayed on the display device; When a predetermined operation member is used to instruct the imaging device to be powered on and the imaging device is operated in the playback mode, control is performed so that connection setting information is set in accordance with the content to be displayed on the display device, regardless of the number of contents to be displayed on the display device. A control method comprising:

25. A program for causing a computer to function as each of the means of the imaging device according to any one of claims 1 to 23.

Images