Imaging device, illumination device, imaging system and control method

Abstract

To allow a photographer to easily execute color shift imaging.SOLUTION: An imaging device which can perform imaging using an illumination device comprises: imaging means; selection means which selects a background color according to an instruction of a user; processing means which performs white balance processing on the basis of the background color selected by the selection means to an image obtained by the imaging means by irradiating a subject with illumination light of the illumination device; and decision means which decides the illumination color of the illumination device which performs irradiation when the image is obtained by the imaging means such that the color of the subject irradiated with the illumination light of the illumination device in the image subjected to the white balance processing becomes a different color from the background color selected by the selection means.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an imaging system having an imaging device and a lighting device.

Background Art

[0002] Conventionally, an optical filter for changing the color of illumination light is attached to the front surface of the light emitting part of a lighting device, and color shift shooting is performed to change the color of a background or the like not illuminated by the illumination light by performing white balance setting based on the illumination light changed to a predetermined color. In color shift shooting, by performing the same white balance setting for a main subject with a large ratio of the illumination light of the lighting device among the incident lights and a background or the like with a large ratio of ambient light, the color of the main subject can be kept natural while the color of the background or the like can be changed. Further, by changing the color of the optical filter, the background or the like after white balance processing can be changed to a desired color.

[0003] As a technique for changing the color of the illumination light of a lighting device, in Citation Document 1, a technique for controlling a light emitting part so that when the light of external light and the light of the light emitting part are mixed and irradiated onto a subject, it becomes the same as when the subject is irradiated with natural light (white light) is described.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the technique described in Patent Document 1, an arbitrary background color or the like cannot be set by a photographer, so it is not color shift shooting as a creative expression.

[0006] Therefore, the objective of the present invention is to enable photographers to easily perform color shift photography. [Means for solving the problem]

[0007] To achieve the above objective, the imaging device according to claim 1 of the present invention is an imaging device capable of taking photographs using an illumination device, and is characterized by comprising: an imaging means; a selection means for selecting a background color according to user instructions; a processing means for irradiating a subject with illumination light from the illumination device and performing white balance processing on the image obtained from the imaging means based on the background color selected by the selection means; and a determination means for determining the illumination color of the illumination device to be used when obtaining an image with the imaging means, such that the color of the subject irradiated with illumination light from the illumination device in the image after the white balance processing is a different color from the background color selected by the selection means. [Effects of the Invention]

[0008] According to the present invention, photographers can easily perform color shift photography. [Brief explanation of the drawing]

[0009] [Figure 1] This is a block diagram showing a schematic configuration of an imaging system according to the first embodiment of the present invention. [Figure 2] This is a flowchart showing the imaging operation according to the first embodiment of the present invention. [Figure 3] This figure shows the display screen when selecting a background color according to the first embodiment of the present invention. [Figure 4] This is a block diagram showing a schematic configuration of an imaging system according to a second embodiment of the present invention. [Figure 5] This is a flowchart showing the imaging operation according to the second embodiment of the present invention. [Modes for carrying out the invention]

[0010] (First embodiment) Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Figure 1 is a block diagram showing a schematic configuration of an imaging system according to an embodiment of the present invention. In the imaging system shown in Figure 1, a camera 100, which is an imaging device, is fitted with a photographic lens 200 and an LED light 300, which is an illumination device. The photographic lens 200 and the LED light 300 may be integrated with the camera 100. The illumination device only needs to be able to change the color of the illumination light, and may use an organic EL light or a strobe as a light source and change the color using an optical filter. In this embodiment, the LED light 300 is configured to change the color of the illumination light by changing the emission ratio of multiple LEDs with different illumination light colors.

[0011] In Figure 1, a photographic lens 200 is mounted on the front of the camera 100. The photographic lens 200 is replaceable, and the camera 100 and the photographic lens 200 are electrically connected via a mount contact group 103. An LED light 300 is mounted on the accessory shoe on the top of the camera 100. The LED light 300 is replaceable, and the camera 100 and the LED light 300 are electrically connected via an illumination contact group 109.

[0012] The camera control unit 101 is a microcomputer that controls the operation of various parts of the camera 100. It also has built-in memory for storing various adjustment values ​​and programs for executing various controls. This built-in memory also serves as a buffer memory for temporarily storing various data processed at various points.

[0013] The image sensor 102 converts light from the subject entering through the lens 202 into an electrical signal to generate an image signal, including still images and videos, and outputs it to the camera control unit 101.

[0014] The shutter 104 is positioned between the image sensor 102 and the lens 202 and operates according to instructions from the camera control unit 101. The shutter 104 consists of a front curtain and a rear curtain. When the front curtain moves and the shutter opens, exposure of the image sensor 102 begins, and when the rear curtain moves and the shutter closes, exposure of the image sensor 102 ends. Alternatively, one or both of the front and rear curtains of the shutter 104 may be omitted, and exposure may be controlled by a so-called electronic shutter.

[0015] The camera control unit 105 is equipped with operating elements operated by the user, the photographer. It detects operations performed by the photographer via buttons, switches, dials, connected devices, etc., attached to the camera 100, and sends signals corresponding to the operation instructions to the camera control unit 101. For still images, the camera control unit 105 outputs an instruction signal (hereinafter referred to as the SW1 signal) when the photographer half-presses the release button, and an instruction signal (hereinafter referred to as the SW2 signal) when the photographer fully presses the button. For video, it outputs an instruction signal (hereinafter referred to as the REC signal or REC stop signal) when the photographer operates the record button to the camera control unit 101. In addition, various settings such as the mode setting of the camera 100 are also performed in response to the photographer's operations on the camera control unit 105.

[0016] The camera display unit 106 has an LCD panel or an organic EL panel, and displays shooting information and captured images according to instructions from the camera control unit 101.

[0017] The camera control unit 101 controls the operation of the camera 100 based on the output signal of the camera operation unit 105. When the output signal of the camera operation unit 105 is the SW1 signal, the camera control unit 101 drives the image sensor 102 to take an image and outputs focus information such as the amount of defocus in each focus detection area (AF area). It also repeatedly performs metering control to measure the brightness of the subject from the image capture result, and determines the shutter speed, aperture value, and sensitivity (ISO sensitivity) of the image sensor 102 to be used during shooting from the metering result. Here, the shutter speed, aperture value, and ISO sensitivity used during shooting are collectively called the exposure control value. The determined exposure control value is displayed on the screen of the camera display unit 106. When the output signal of the camera operation unit 105 is the SW2 signal, the camera control unit 101 drives the aperture 203 in the lens 202, sets the ISO sensitivity, and controls the shutter 104 to illuminate the image sensor 102 with light. When the output signal of the camera operation unit 105 is a REC signal, the camera control unit 101 sets the ISO sensitivity and frame rate according to its instructions, drives the image sensor 102 to take an image, and outputs focus information such as the amount of defocus in each focus detection area (AF area). It also repeatedly irradiates the image sensor 102 with light while performing photometering control to measure the brightness of the subject from the image capture result. The lens control unit 201, described later, drives the focus lens (not shown) for adjusting the focus in the lens 202 according to the instructions of the camera control unit 101 to repeatedly perform autofocus. The camera control unit 101 displays the captured image on the screen of the camera display unit 106 according to the image acquired from the image sensor 102, and also controls the storage unit 107 to store the image (including the one with sound information).

[0018] The camera wireless communication unit 108 performs wireless communication between the camera 100 and external devices, for example, by sending and receiving data such as image signals, audio signals, compressed image data, and compressed audio data. It also sends and receives control signals related to shooting, such as start and end shooting commands, as well as other setting and operation command information. The camera wireless communication unit 108 is a wireless communication module such as an infrared communication module, a wireless LAN communication module, or a Wireless USB module.

[0019] Next, the configuration of the photographing lens 200 will be described.

[0020] The lens control unit 201 is a microcomputer that controls the operations of each part of the photographing lens 200.

[0021] The lens 202 is composed of one or more lenses including a focus lens for adjusting focus, and forms a subject image on the imaging element 102. Further, it includes an aperture 203 for adjusting the amount of light. The lens control unit 201 adjusts the amount of light taken into the camera and the focus according to an instruction from the camera control unit 101 by control via the mount contact group 103, and sends lens information and the like at that time to the camera control unit 101. [[ID=​​​​​​​​​​​​​The lighting control unit 303 is equipped with user-operated controls and detects user operations via buttons, dials, etc., attached to the LED light 300, sending signals corresponding to the operation instructions to the lighting control unit 301. Various settings, such as mode settings for the LED light 300, are performed in response to the photographer's operations on the lighting control unit 303.

[0026] The lighting display unit 304 displays the light emission mode and other information according to the instructions of the lighting control unit 301.

[0027] The power supply unit 305 uses the power from the battery mounted on the LED light 300 to supply energy for generating illumination light to shine on the subject to be photographed. Information regarding the power supply (including battery level, etc.) is controlled by the illumination control unit 301 and transmitted to the camera control unit 101 via the illumination contact group 109.

[0028] The lighting wireless communication unit 306, like the camera wireless communication unit 108, performs wireless communication between the LED light 300 and an external device (e.g., camera 100), for example, sending and receiving various settings and operation commands such as light output, light color, and illumination range. The lighting wireless communication unit 306 is a wireless communication module such as an infrared communication module, a wireless LAN communication module, or a Wireless USB.

[0029] The settings for the light emission amount, emission color, illumination range, etc. of the light emission unit 302 may be set by the lighting operation unit 303. Alternatively, these settings may be acquired by communication from the camera control unit 101 via the lighting contact group 109, the camera wireless communication unit 108, and the lighting wireless communication unit 306. The lighting control unit 301 receives control signals from the camera control unit 101 via the lighting contact group 109 and can cause the light emission unit 302 to emit light at a predetermined amount, emission color, and illumination angle in conjunction with the shooting operation of the camera 100. When acquiring settings by communication from the camera control unit 101, automatic setting by the camera control unit 101 or setting by operation from the camera operation unit 105 is possible.

[0030] The operation of the imaging system according to this embodiment will be described below with reference to Figure 2. Figure 2 is a flowchart showing an example of still image shooting operation using a camera 100 and an LED light 300. When the main power supply of the camera 100 located in the camera operation unit 105 is turned on, power is supplied to each block of the camera 100 from a battery (not shown), initialization and loading of various settings are performed, and the system is ready for shooting. When the main power supply of the LED light 300 located in the lighting operation unit 303 is turned on, power is supplied to each block of the LED light 300 from the power supply unit 305, initialization and loading of various settings are performed, and the system is ready for shooting. Note that the LED light 300 may also be configured to receive power from the camera 100 via the lighting contact group 109.

[0031] In step S200, the camera control unit 101 displays a background color selection screen on the camera display unit 106 and allows the user to operate the camera operation unit 105 to select a desired background color. The background color selection screen will be described later.

[0032] In step S201, the camera control unit 101 monitors the status of the SW1 signal. If SW1 is ON, the process proceeds to step S202. If SW1 is OFF, step S201 can be repeated, or the process may return to step S200 to update the background color selection.

[0033] In step S202, the camera control unit 101 acquires various information from the lighting control unit 301 of the LED light 300 via the lighting contact group 109. In step S212, the lighting control unit 301 transmits the various information to the camera 100 via the lighting contact group 109. The information acquired here includes information indicating the maximum light output of the LED light 300, the available colors (illumination colors that can be used), the illumination range, and the battery status.

[0034] In step S203, the camera control unit 101 instructs each part to perform imaging processing and acquires an image to measure the brightness used for AE (Auto Exposure) control. At this time, the lens control unit 201 drives the focus lens in the lens 202 to perform autofocus in accordance with instructions from the camera control unit 101 via the mount contact group 103.

[0035] In step S204, the camera control unit 101 detects background color information from the image acquired from the image sensor 102 in step S203 (color information detection). The method for detecting the background color may be to determine the main subject using known techniques such as distance maps, exposure information, and pattern matching, and then identify the background. For example, the background color may be detected from information such as the hue ratio of the color information obtained from the area identified as the background.

[0036] In step S205, the camera control unit 101 calculates the color information for setting the camera's WB (white balance) and lighting color so that the background color detected in step S204 corresponds to the color selected in step S200. The calculation of the color information will be described later.

[0037] In step S206, the camera control unit 101 determines the illumination color of the light-emitting unit 302 based on the color information calculated in step S205 and notifies the lighting control unit 301. After processing in step S212, the lighting control unit 301 proceeds to step S213 to determine whether the illumination color has been determined or not. In step S213, the lighting control unit 301 determines whether it has received notification of the illumination color from the camera control unit 101 (whether the illumination color has been determined or not). If it has received notification in step S206, it proceeds to step S214, where it updates the illumination color setting. It is also possible that the illumination color of the light-emitting unit 302 based on the color information calculated in step S205 may not be an illumination color that can be emitted by the light-emitting unit 302. In such a case, the camera control unit 101 determines the color that is closest to the illumination color of the light-emitting unit 302 based on the color information calculated in step S205 among the illumination colors that can be emitted by the light-emitting unit 302 as the illumination color of the light-emitting unit 302 and notifies the lighting control unit 301. Alternatively, the lighting control unit 301 sets the lighting color of the light-emitting unit 302 to be the color that is closest to the lighting color notified by the camera control unit 101 among the lighting colors that can be emitted by the light-emitting unit 302.

[0038] In step S207, the camera control unit 101 sets the white balance (WB) based on the color information calculated in step S205.

[0039] In step S208, the camera control unit 101 monitors the status of the SW2 signal, and if SW2 is turned on, it proceeds to step S209. On the other hand, if SW2 is off, the camera control unit 101 proceeds to step S201 and repeats the processes from step S201 to step S207 until SW2 is turned on. Also, when SW2 is turned on, it notifies the lighting control unit 301 to start emitting light.

[0040] Upon receiving the notification in step S208, the lighting control unit 301 causes the light-emitting unit 302 to start emitting light in the lighting color set in step S214 in step S215.

[0041] In step S209, the camera control unit 101 instructs each unit to perform imaging processing and starts exposure using the image sensor 102. During imaging processing, the exposure control value or the amount of light emitted by the light emitter 302 is controlled to ensure that the acquired image has appropriate exposure. Some or all of the settings for the exposure control value and the amount of light emitted by the light emitter 302 may be manually set from the camera operation unit 105 and the illumination operation unit 303.

[0042] Furthermore, in step S209, the camera control unit 101 performs white balance (WB) processing on the image acquired from the image sensor as part of the imaging process, based on the WB setting set in step S207. After the imaging process is completed, the process proceeds to step S210.

[0043] In step S210, the camera control unit 101 notifies the lighting control unit 301 that the imaging process has finished. Upon receiving the notification in step S210, the lighting control unit 301 terminates the emission of light from the light-emitting unit 302 in step S216.

[0044] In step S211, the camera control unit 101 saves the image acquired in step S209 to the storage unit 107. At this time, the light emission information of the camera 100, the shooting lens 200, and the LED light 300 is saved as Exif data along with the image. After the image is saved, the series of imaging operations is completed.

[0045] Next, a specific example of background color selection in step S200 will be explained using Figure 3. Figure 3 shows an example of the selection screen displayed on the camera display unit 106 during background color selection in step S200. In the example in Figure 3, an image is displayed on the left side of the screen, and on the right side, an image for selecting a background color, such as hue information or color coordinates, is displayed. The photographer selects the desired background color by moving the position of the black circle displayed on the background color selection image while looking at the position of the black circle displayed on the background color selection image and the corresponding image, and operating the electronic dial or the like provided on the camera operation unit 105. Note that the method of instruction by the photographer when selecting a background color is not limited to operation of the electronic dial or the like, but may also be known methods such as voice input or eye-tracking input. The background color selection image may also display candidate background colors in letters such as red, blue, and green, and the photographer may select the desired background color by choosing the desired color from the displayed letters.

[0046] Next, a specific example of the color setting calculation in step S205 will be described. In this embodiment, in step S215, light equivalent to the complementary color (complementary color or near-complementary color) of the background color selected in step S200 is irradiated from the light-emitting unit 302 onto the main subject, and white balance (WB) processing is performed using the WB setting in step S207. In this way, while performing WB processing to make the background color selected by the photographer, the color change of the main subject due to WB processing and the color change of the main subject due to the illumination light are canceled out to make the main subject a natural color. In other words, the R'G'B' values ​​that are the complementary color are calculated from the RGB values ​​of the background color selected in step S200, and the color of the illumination light from the light-emitting unit 302 is determined. As a known method for finding complementary colors, it is generally known that the value obtained by subtracting each value from the sum of the maximum and minimum values ​​among the RGB values ​​is the complementary color. In other words, it can be calculated using the following formula.

[0047]

number

[0048] By using the color obtained by equation (1) to determine the illumination color of the light-emitting unit 302 in step S213 and the WB setting in step S207, the main subject illuminated by the light returns to a natural color due to the WB setting. On the other hand, the background not illuminated by the light becomes a color equivalent to the background color selected in step S200 due to the influence of the WB setting. At this time, the processing of the illumination color setting can be simplified by matching the number of processing bits for RGB captured by the image sensor 102 with the number of control bits for the RGB LEDs of the light-emitting unit 302. In this embodiment, the RGB method is used for explanation, but calculations may be performed using other methods such as the HLS color space.

[0049] According to this embodiment, the photographer can easily perform color shift photography by selecting a desired background color. Although this embodiment describes color shift photography for still images, since illumination with continuous light is possible using the LED light 300, color shift photography for videos can be performed in the same way.

[0050] (Second embodiment) The operation of the imaging system as a second embodiment of the present invention will now be described with reference to Figures 4 and 5. Figure 4 shows the LED light 300 shown in Figure 1 removed from the accessory shoe of the camera 100 and wirelessly connected by the camera wireless communication unit 108 and the lighting wireless communication unit 306. In Figure 5, the operations of steps S500 to S503, S514, S515, S516, and S522 are the same as the operations of steps S200 to S203, S210, S211, S212, and S216 in Figure 2, so their explanation will be omitted.

[0051] This embodiment differs from the first embodiment in that the LED light 300 is not physically connected to the camera 100 and constitutes the imaging system as an independent lighting device. It also differs from the first embodiment in that the lighting color of the light-emitting unit 302 is calculated by the lighting control unit 301. While this embodiment describes an example with a single lighting device, multiple lighting devices capable of simultaneous illumination may be used in combination via wireless connection or the like.

[0052] In step S504, the camera control unit 101 detects a predetermined main subject using the image acquired from the image sensor 102 in step S503 (subject detection). Based on the detection result of the main subject, the camera control unit 101 calculates the illumination range of the light-emitting part 302 of the LED light 300 that includes the main subject in the image. The method for detecting the predetermined main subject may be a known technique such as face detection, pupil detection, motion detection, pattern matching, or distance mapping.

[0053] In step S505, the camera control unit 101 notifies the lighting control unit 301 of the illumination range calculated in step S504 via the camera wireless communication unit 108 and the lighting wireless communication unit 306. Upon receiving the notification in step S505, the lighting control unit 301 drives the illumination range adjustment mechanism in the light-emitting unit 302 in step S517 to match the illumination range notified by the camera control unit 101.

[0054] In step S506, the camera control unit 101 detects background color information using the image acquired from the image sensor 102 in step S503. The method for detecting the background color can be the same as in step S204.

[0055] In step S507, the camera control unit 101 calculates the WB (white balance) color information of the camera 100 so that the background color detected in step S506 corresponds to the color selected in step S500.

[0056] In step S508, the camera control unit 101 sets the white balance (WB) based on the color information calculated in step S507.

[0057] In step S509, the camera control unit 101 notifies the lighting control unit 301 of the WB setting information (WB setting information) set in step S508 via the camera wireless communication unit 108 and the lighting wireless communication unit 306. In step S518, the lighting control unit 301 calculates (determines) the color information for the lighting color setting of the light-emitting unit 302 so that the main subject appears in natural colors based on the WB setting information received from the camera control unit 101. The method for calculating the color information can be the same as in step S205.

[0058] In step S519, following step S518, the lighting control unit 301 sets the lighting color of the light-emitting unit 302 to match the lighting color calculated in step S518.

[0059] In step S510, the camera control unit 101 monitors the status of the SW2 signal, and if SW2 is turned on, it proceeds to step S511. On the other hand, if SW2 is off, the camera control unit 101 proceeds to step S501 and repeats the processes from step S501 to step S509 until SW2 is turned on. Also, when SW2 is turned on, it notifies the lighting control unit 301 to start emitting light.

[0060] Upon receiving notification in step S510, the lighting control unit 301 starts the light-emitting unit 302 to emit light in the lighting color set in step S519 in step S520.

[0061] In step S511, the camera control unit 101 instructs each unit to perform imaging processing and starts exposure using the image sensor 102. At this time, if the color information (e.g., RGB information) of the image acquired by the image sensor 102 and processed with white balance differs from the result obtained in step S504 when detecting a predetermined main subject, the camera control unit 101 calculates the amount of the color information deviation. Then, it calculates the correction information for the illumination color emitted by the light-emitting unit 302. This is because the original aim is to make the color information of the main subject equivalent to the color information of the main subject detected in step S504, based on the combination of the white balance setting set in step S508 and the illumination color setting set in step S519. After calculating the illumination color correction amount, the camera control unit 101 proceeds to step S512. If the amount of color information deviation is within a predetermined range, the calculation of the illumination color correction information in step S511, and the following steps S512, S513, and S522 are omitted.

[0062] In step S512, the camera control unit 101 notifies the lighting control unit 301 of the lighting color correction information calculated in step S511 via the camera wireless communication unit 108 and the lighting wireless communication unit 306. Upon receiving the notification in step S512, the lighting control unit 301 corrects the color information of the lighting color setting of the light-emitting unit 302 in step S521 based on the lighting color correction information notified by the camera control unit 101.

[0063] In step S513, the camera control unit 101 again instructs each unit to perform imaging processing, and the image sensor 102 starts exposure.

[0064] According to this embodiment, the photographer can easily perform color shift photography by selecting a desired background color.

[0065] Furthermore, the operations described in the two embodiments above may be executed when a specific mode different from the normal mode, such as a color shift mode, is set for at least one of the camera 100 and the LED light 300. In such a configuration, for example, the camera control unit 101 can perform a mode determination process before step S200 or step S500, and if it is determined that the color shift mode is set, it can proceed to step S200 or step S500.

[0066] Furthermore, in the two embodiments described above, the lighting control unit 301 may perform some of the operations performed by the camera control unit 101, or the camera control unit 101 may perform some of the operations performed by the lighting control unit 301. Alternatively, a light emission control accessory that does not have a light-emitting unit may perform some of the operations performed by the camera control unit 101 or the lighting control unit 301, and transmit the illumination color information calculated by the light emission control accessory to the lighting device.

[0067] Furthermore, the flowcharts described in the two embodiments above are merely examples, and you may execute the various processes in a different order than those described in the flowcharts, provided there are no inconveniences.

[0068] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of its gist. For example, instead of the camera 100 as an imaging device, a "smartphone with camera function" or a "head-mounted display with a built-in camera" that can be wirelessly connected to an LED light 300 may be used.

[0069] This embodiment includes the following configurations and methods.

[0070] (Composition 1) An imaging device capable of taking photographs using a lighting device, Imaging means, A selection method for selecting the background color according to user instructions, A processing means that irradiates a subject with illumination light from the lighting device and performs white balance processing on the image obtained from the imaging means based on the background color selected by the selection means, An imaging apparatus characterized by having a determination means for determining the illumination color of the illumination device to be used when obtaining an image with the imaging means, such that the color of the subject illuminated by the illumination light of the illumination device in the image after the white balance processing is performed is different from the background color selected by the selection means.

[0071] (Configuration 2) The imaging apparatus according to Configuration 1, characterized in that the determination means sets the complementary color or a color near the complementary color of the background color selected by the selection means as the illumination color of the illumination device used to obtain an image with the imaging means.

[0072] (Composition 3) A subject detection means for detecting the main subject from the image obtained by the imaging means, The imaging device according to configuration 1 or 2, further comprising a calculation means for calculating the irradiation range of the illumination light of the lighting device based on the detection result of the subject detection means.

[0073] (Composition 4) The system includes a color information detection means for detecting background color information from an image obtained from the aforementioned imaging means, The imaging apparatus according to any one of configurations 1 to 3, characterized in that the processing means performs the white balance processing based on the background color information detected by the color information detection means and the background color selected by the selection means.

[0074] (Composition 5) The lighting device has an acquisition means for acquiring information indicating the illumination colors that can be irradiated by the aforementioned lighting device. The imaging apparatus according to any one of configurations 1 to 4, characterized in that the determination means determines the illumination color of the illumination device to be irradiated when obtaining an image with the imaging means, based on the information indicating the illumination color acquired by the acquisition means and the background color selected by the selection means.

[0075] (Composition 6) The imaging device according to any one of configurations 1 to 5, characterized by having a display means for displaying an image corresponding to the background color selected by the selection means.

[0076] (Composition 7) An illumination device capable of communicating with an imaging device, A lighting means that allows the lighting color to be changed, A lighting device characterized by having setting means for setting the illumination color of the lighting means based on information regarding the white balance setting of the imaging device received from the imaging device.

[0077] (Composition 8) Imaging means, A lighting means that allows the lighting color to be changed, A selection method for selecting the background color according to user instructions, A processing means that irradiates a subject with illumination light from the illumination means and performs white balance processing on the image obtained from the imaging means based on the background color selected by the selection means, An imaging system characterized by having a determination means for determining the illumination color of the illumination means to be used when obtaining an image with the imaging means, such that the color of the subject illuminated by the illumination light of the illumination means in the image after the white balance processing is performed is different from the background color selected by the selection means.

[0078] (Composition 9) A control method for an imaging device capable of taking photographs using an illumination device, A selection step in which the background color is selected according to the user's instructions, A processing step which involves irradiating a subject with illumination light from the lighting device and performing white balance processing on the image obtained by the imaging means of the imaging device based on the background color selected in the selection step, A control method for an imaging device, comprising: a determination step of determining the illumination color of the illumination device to be used when obtaining an image with the imaging means, such that the color of the subject illuminated by the illumination light of the illumination device in the image after the white balance processing is performed is different from the background color selected in the selection step.

[0079] (Composition 10) A control method for an illumination device that can communicate with an imaging device and can change the illumination color, A control method for an illumination device, characterized by having a setting step of setting the illumination color of the illumination means based on information regarding the white balance setting of the imaging device received from the imaging device.

[0080] (Composition 11) A control method for an imaging system comprising an imaging means and an illumination means capable of changing the illumination color, A selection step in which the background color is selected according to the user's instructions, A processing step which involves irradiating a subject with illumination light from the illumination means and performing white balance processing on the image obtained from the imaging means based on the background color selected in the selection step, A control method for an imaging system, comprising: a determination step of determining the illumination color of the illumination means to be used when obtaining an image with the imaging means, such that the color of the subject illuminated by the illumination light of the illumination means in the image after the white balance processing is performed is different from the background color selected in the selection step. [Explanation of symbols]

[0081] 100 Cameras 101 Camera Control Unit 102 Image sensor 105 Camera control unit 106 Camera display unit 107 Storage section 108 Camera Wireless Communication Section 200 shooting lens 201 Lens Control Unit 202 Lens 300 LED lights 301 Lighting Control Unit 302 Light-emitting part 303 Lighting Control Unit 304 Lighting display section 306 Lighting and Wireless Communication Section

Claims

1. An imaging device capable of photographing using a lighting device, An imaging means; A selection means for selecting a background color in response to a user instruction; a processing means for performing white balance processing on an image obtained by irradiating a subject with illumination light from the illumination device and acquiring the image from the imaging means, based on the background color selected by the selection means; a determination means for determining an illumination color of the illumination device to be irradiated when an image is obtained by the imaging means, so that a color of a subject illuminated with illumination light from the illumination device in the white balance processed image is a color different from a background color selected by the selection means.

2. 2. The imaging device according to claim 1, wherein the determining means determines the complementary color or a color close to the complementary color of the background color selected by the selecting means as the illumination color of the illumination device that is irradiated when an image is obtained by the imaging means.

3. a subject detection means for detecting a main subject from an image obtained by the imaging means; 2. The imaging apparatus according to claim 1, further comprising: a calculation unit that calculates an illumination range of the illumination light from the illumination device based on a detection result from the subject detection unit.

4. a color information detection means for detecting background color information from the image obtained by the imaging means, 2. The image pickup apparatus according to claim 1, wherein said processing means performs said white balance processing based on said background color information detected by said color information detection means and the background color selected by said selection means.

5. An acquisition means for acquiring information indicating an illumination color that can be irradiated by the illumination device, The imaging device according to claim 1, characterized in that the determination means determines the illumination color of the illumination device to be irradiated when an image is obtained by the imaging means, based on the information indicating the illumination color acquired by the acquisition means and the background color selected by the selection means.

6. 2. The image pickup apparatus according to claim 1, further comprising display means for displaying an image corresponding to the background color selected by said selection means.

7. A lighting device capable of communicating with the imaging device according to claim 1, A lighting means capable of changing the lighting color; a setting unit that sets a lighting color of the lighting unit based on information regarding a white balance setting of the imaging device received from the imaging device.

8. An imaging means; A lighting means capable of changing the lighting color; A selection means for selecting a background color in response to a user instruction; a processing means for performing white balance processing on an image obtained by the imaging means by irradiating an object with the illumination light of the illumination means, based on the background color selected by the selection means; a determining means for determining an illumination color of the illumination means to be irradiated when an image is obtained by the imaging means, so that a color of a subject illuminated with illumination light from the illumination means in the white balance processed image is a color different from a background color selected by the selecting means.

9. A method for controlling an imaging device capable of photographing using a lighting device, comprising: A selection step for selecting a background color in response to a user instruction; a processing step of performing white balance processing on an image obtained by irradiating an object with illumination light from the illumination device and capturing the image based on the background color selected in the selection step; a determination step of determining an illumination color of the illumination device to be irradiated when an image is obtained by the imaging means so that a color of a subject illuminated by the illumination light of the illumination device in the image subjected to the white balance processing is a color different from the background color selected in the selection step.

10. A method for controlling a lighting device capable of communicating with the imaging device according to claim 1 and capable of changing a lighting color, comprising:

13. A method for controlling an illumination device, comprising: a setting step of setting an illumination color of the illumination device based on information regarding a white balance setting of the imaging device received from the imaging device.

11. A control method for an imaging system including an imaging means and a lighting means capable of changing a lighting color, the control method comprising: A selection step for selecting a background color in response to a user instruction; a processing step of applying white balance processing to an image obtained by the imaging means by irradiating an object with the illumination light from the illumination means, based on the background color selected in the selection step; a determining step of determining an illumination color of the illumination means to be irradiated when an image is obtained by the imaging means so that a color of a subject illuminated with illumination light from the illumination means in the white balance processed image is a color different from the background color selected in the selecting step; 13. A method for controlling an imaging system comprising:

Images