Image display method, processing device, display device and communication system

Abstract

The present invention describes an image display method, a processing device, a display device and a communication system, the display method being a method for transmitting an image of a first device to a second device and displaying the image by the second device, the display method comprising: selecting an initial image by the first device, selecting a target image in the initial image by using a preset image frame; sending the initial image and the target image to a second device; correcting the target image based on the screen scale of the second device and the initial image to obtain a target display image conforming to the screen scale of the second device; and displaying the target display image in a screen of the second device. According to the image display method, a user can accurately display local bright spots of the photo, and the use flexibility and the user experience of the digital photo frame are improved.

Description

Technical Field

[0001] This invention relates to the field of image processing, and more specifically to an image display method, processing apparatus, display device, and communication system. Background Technology

[0002] With the development of the digital age, digital photo frames, as a new type of image display device, have gradually entered people's daily lives. Digital photo frames typically have components such as a display screen, memory, and processor, capable of displaying digital images and receiving and storing image data in various ways. Currently, the image display technology of digital photo frames mainly includes image transmission, image processing, and image display.

[0003] In terms of image transmission, existing technologies typically employ wired connections or wireless transmission to transfer images from terminal devices to digital photo frames. For example, CN116204102A discloses an image display method that involves transmitting and displaying an image from one device to another. However, this transmission method usually transmits the entire image directly to the digital photo frame, lacking the ability to selectively transmit specific areas of the image.

[0004] In image processing, due to differences in screen ratios across different devices, images typically require adaptation processing before display. CN116405727A discloses an image display method that performs facial recognition on an image and crops the image based on the recognition results to fit the screen ratio of the display device. CN114911551A proposes a wallpaper display method that, when the screen aspect ratio differs from the initial image aspect ratio, crops the initial image to obtain a target image with the same resolution as the screen. While these methods can solve the image ratio adaptation problem to some extent, they all rely on automatic processing based on preset cropping rules, lacking the flexibility of user-selective cropping.

[0005] In image display, existing technologies mainly address the mismatch between the image and the display screen ratio by scaling, cropping, or adding black borders. CN112783413B discloses an image processing method that allows users to select and adjust specific areas of the image to be processed by setting a region selection box and adjustment controls. CN119299590A proposes an image expansion method that determines the expansion area corresponding to the initial image based on image parameters, screen parameters, and a preset image edge ratio, and then expands the initial image. These methods improve the flexibility of image display to some extent, but still have some limitations.

[0006] Existing technologies for image display still suffer from the following problems: First, current digital photo frame image display technologies have limitations, making it difficult to meet users' diverse and personalized display needs. Most digital photo frames can only display the entire image in a preset manner, preventing users from selecting specific areas of the image for focused display. Second, because the aspect ratio of photos taken by mobile phones and other terminal devices often differs from that of digital photo frame displays, the default adaptation methods of existing digital photo frames (such as proportional scaling, cropping, or adding black borders) cannot simultaneously ensure the integrity of the photo and the screen's fill effect. Finally, existing technologies only support the transmission and display of the entire photo, failing to consider users' personalized needs. They lack area selection functionality on the terminal device and have not established a collaborative mechanism of "terminal selection of highlight areas - digital photo frame targeted processing and display," resulting in users being unable to accurately display specific highlights in the photo, thus limiting the flexibility and user experience of digital photo frames. Summary of the Invention

[0007] To address the limitations of existing digital photo frame image display technologies, issues with image ratio adaptation, and a lack of personalized display functions, this invention provides an image display method, processing device, display device, and communication system. This method enables users to accurately display local highlights in photos, improving the flexibility of digital photo frames and enhancing the user experience.

[0008] To this end, the first aspect of the present invention provides an image display method, the display method being a method of transmitting an image from a first device to a second device and displaying the image by the second device, the display method comprising: selecting an initial image by the first device and selecting a target image in the initial image by using a preset image frame; sending the initial image and the target image to the second device; correcting the target image based on the screen ratio of the second device and the initial image to obtain a target display image that conforms to the screen ratio of the second device; and displaying the target display image on the screen of the second device.

[0009] In this invention, the user can flexibly select any area in the initial image as the target image, and the second device will intelligently correct the target image to adapt it to the screen ratio of the second device, thereby providing a better image display effect.

[0010] In addition, in the image display method according to the first aspect of the present invention, optionally, after sending the initial image and the target image to the second device, the method further includes: determining whether the image ratio of the target image is the same as the screen ratio of the second device; if they are not the same, then proceeding to the next step.

[0011] Additionally, in the image display method according to the first aspect of the present invention, optionally, the correction includes: supplementing the target image with image regions in the horizontal and / or vertical directions based on the center point of the target image, so that the aspect ratio of the target image is equal to the screen ratio of the second device, wherein the supplemented image regions are derived from image regions in the initial image adjacent to the target image.

[0012] In addition, in the image display method according to the first aspect of the present invention, optionally, the target image is supplemented with an image region of equal proportion in the left-right direction about the horizontal axis, and / or, the target image is supplemented with an image region of equal proportion in the up-down direction about the vertical axis.

[0013] In addition, in the image display method according to the first aspect of the present invention, optionally, if after supplementing the image area, the image area is identified as a blank area, the target image is supplemented using the image area of ​​the initial image on the other side of the blank area.

[0014] In addition, in the image display method according to the first aspect of the present invention, optionally, the preset image frame is a rectangle, a circle, an ellipse or an irregular shape.

[0015] In addition, in the image display method according to the first aspect of the present invention, optionally, the first device is a mobile phone, tablet or computer, and the second device is a digital photo frame, portable screen or free screen.

[0016] A second aspect of the present invention provides an image processing apparatus, which is applied to a first device. The image processing apparatus includes: a selection module configured to select an initial image and select and crop a target image from the initial image using a preset image frame; and a first communication module configured to send the initial image and the target image to a second device.

[0017] A third aspect of the present invention provides an image display device, the image display device being applied to a second device, the image display device comprising: a second communication module configured to receive an initial image and a target image; a correction module configured to correct the target image based on the screen ratio of the second device and the initial image to obtain a target display image conforming to the screen ratio of the second device; and a display module configured to display the target display image on the screen of the second device.

[0018] A fourth aspect of the present invention provides a communication system comprising a first device and a second device communicatively connected to the first device. The first device includes a first memory, a first processor, and an operation program for an image stored in the first memory and executable on the first processor. The second device includes a second memory, a second processor, and a display program for an image stored in the second memory and executable on the second processor. The operation program for the image is executed by the first processor, and when the display program for the image is executed by the second processor, the image display method described in the first aspect is implemented.

[0019] According to the present invention, an image display method, processing device, display device, and communication system are provided to enable users to accurately display the highlights of a photo, thereby improving the flexibility of digital photo frames and the user experience. Attached Figure Description

[0020] The invention will now be explained in further detail by way of example only with reference to the accompanying drawings.

[0021] Figure 1 This is a flowchart illustrating a method for displaying images according to an example of the present invention.

[0022] Figure 2 This is a flowchart illustrating a correction method for modifying a target image according to an example of the present invention.

[0023] Figure 3 This is a schematic diagram illustrating Embodiment 1 of the present invention, which involves the modification of a target image.

[0024] Figure 4 This is a schematic diagram illustrating Embodiment 2 of the present invention, which involves the modification of a target image.

[0025] Figure 5 This is a functional block diagram illustrating an embodiment 1 of the communication system involved in the example of the present invention.

[0026] Figure 6 This is a functional block diagram illustrating the image processing apparatus and image display apparatus involved in the example of the present invention.

[0027] Figure 7 This is a functional block diagram illustrating Embodiment 2 of the communication system involved in the example of the present invention. Detailed Implementation

[0028] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are used for the same parts, and repeated descriptions are omitted. Furthermore, the drawings are merely schematic diagrams, and the proportions of the parts or the shapes of the parts may differ from the actual figures.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, referring to a process, method, system, product, or apparatus that includes or has a series of steps or units, are not necessarily limited to those explicitly listed, but may include or have other steps or units not explicitly listed or inherent to these processes, methods, products, or apparatuses. All methods described in this invention can be performed in any suitable order unless otherwise indicated herein or clearly contradicted by the context.

[0030] Furthermore, the subheadings and similar terms used in the following description of this invention are not intended to limit the content or scope of this invention; they are merely for reading guidance. Such subheadings should not be construed as dividing the content of the article, nor should the content under a subheading be limited to the scope of that subheading.

[0031] Figure 1 This is a flowchart illustrating a method for displaying images according to an example of the present invention. Figure 3 This is a schematic diagram illustrating Embodiment 1 of the present invention, which modifies the target image according to an example of the present invention. Figure 5 This is a functional block diagram illustrating an embodiment 1 of the communication system involved in the example of the present invention.

[0032] Reference Figure 1 , Figure 3 and Figure 5 This invention relates to an image display method, sometimes also referred to as an image processing method, and hereinafter simply referred to as a display method, this method, etc. In some examples, the image display method of this invention enables users to accurately display local highlights of photos or images, improving the flexibility of digital photo frames and the user experience. This invention also relates to a communication system, which includes a first device 1 and a second device 2, through which the image display method can be implemented.

[0033] In some examples, the method involves transmitting an image from a first device 1 to a second device 2, where the second device 2 displays the image.

[0034] In some examples, the display method may include step S100: selecting an initial image A and cropping a target image B. Specifically, the initial image A can be selected by the first device 1, and the target image B in the initial image A can be selected and cropped using a preset image frame.

[0035] In this invention, the image frame can be selected by the user, and the target image B that the user wants to display can be selected through the image frame. Since the target image B is selected according to the user's wishes, its image ratio may be different from or the same as the screen ratio of the second device 2, but it is highly likely to be different.

[0036] In some examples, the user can select an initial image A through the first device 1. In some examples, the initial image A can be a picture stored locally on the first device 1, or it can be a photograph taken by the first device 1.

[0037] In some examples, a user can use their finger or stylus to select an initial image A with an image frame of any shape on the touchscreen of the first device 1. After the selection is completed, the first device 1 will automatically crop out the image within the selected area as the target image B.

[0038] In some examples, the preset image frame can be rectangular, circular, elliptical, or irregularly shaped. The selection method is flexible and diverse, allowing users to choose according to their needs.

[0039] In some examples, the display method may include step S200: sending the initial image A and the target image B to the second device 2.

[0040] In some examples, the first device 1 can simultaneously send the initial image A and the target image B to the second device 2 via a wireless network connection (such as WiFi, Bluetooth, or mobile network) or a wired connection (such as a USB data cable). During transmission, the original resolution and quality of the initial image A and the target image B are maintained to ensure that no image information is lost.

[0041] In some examples, the display method may include step S400: modifying the target image B to fit the screen ratio of the second device 2.

[0042] Specifically, the target image B can be modified based on the screen ratio of the second device 2 and the initial image A to obtain a target display image C that conforms to the screen ratio of the second device 2.

[0043] In some examples, the correction process may involve supplementing the target image B along the horizontal and / or vertical axes based on the center point of the target image B. The supplemented image regions are derived from the image regions in the initial image A adjacent to the target image B. Supplementing the target image B along the horizontal and / or vertical axes means that the target image B can be supplemented along both the horizontal and vertical axes, or it can be supplemented along either the horizontal or vertical axis. The following "and / or" also has this meaning.

[0044] Figure 2 This is a flowchart illustrating a correction method for modifying a target image according to an example of the present invention.

[0045] Specific correction methods may include the following steps.

[0046] Reference Figure 2 and Figure 3 In some examples, the correction method may include step S410, whereby the second device 2 may first determine the center point position O of the target image B.

[0047] In some examples, the correction method may include step S420, calculating the difference in screen ratio between the target image B and the second device 2. For example, if the selected target image B has an image ratio of 1:1, while the screen ratio of the second device 2 is 1:2, it can be seen that the two have the same ratio in the horizontal axis direction, but differ by one unit ratio in the vertical axis direction.

[0048] In some examples, the correction method may include step S430, which, based on the scaling difference, performs proportional image region supplementation on the target image B in the left-right direction about the horizontal axis, and / or performs proportional image region supplementation on the target image B in the up-down direction about the vertical axis.

[0049] Specifically, refer to Figure 3 Since the target image B and the second device 2 have the same proportion in the horizontal direction, it is possible to choose not to supplement the image area in the horizontal direction.

[0050] Since the target image B differs from the screen of the second device 2 by one unit scale along the vertical axis, image region supplementation can be performed in the vertical direction. To keep the target image B centered in the vertical direction, image regions of the target image B can be supplemented by 0.5 units scale in both the upper and lower directions along the vertical axis. That is, image region B1 is supplemented above the target image B along the vertical axis by 0.5 units scale, and image region B2 is supplemented below the target image B along the vertical axis by 0.5 units scale. Thus, the image ratio of the target image B can be supplemented to match the screen ratio of the second device 2 to form the target display image C.

[0051] Of course, it is also possible to choose to perform image region supplementation in the horizontal direction but not in the vertical direction. For example, after horizontal image region supplementation, the target image B with an image ratio of 1:1 can be supplemented into a target display image C with an image ratio of 2:1. At this time, the target display image C can be rotated (rotated 90°) to become the screen ratio of the second device 2 of 1:2.

[0052] In some examples, during the supplementation process, the second device 2 can extract an image region adjacent to the target image B from the initial image A and seamlessly stitch it onto the target image B.

[0053] Figure 4 This is a schematic diagram illustrating Embodiment 2 of the present invention, which involves the modification of target image B.

[0054] Understandable, Figure 3 Image regions B1 and B2, which need to be supplemented, happen to be within the initial image A. However, there are some situations where, for example, the user selects the target image B at the edge of the initial image A (e.g., ...). Figure 4 If the target image B is located at the upper right corner, and image region supplementation is performed at this time, the image region to be supplemented is likely to be a blank area.

[0055] Reference Figure 4 In a preferred embodiment, when the second device 2 is supplementing an image region, if it detects that one side of the image region is a blank area (for example, the target image B is close to the upper right corner of the initial image A, resulting in no usable image region above the target image B, and image region B1 is blank), the second device 2 will automatically use the image region of the initial image A on the other side of the blank area to supplement the target image B. This intelligent supplementation mechanism ensures that the final target display image C will not have obvious blank areas, maintaining the integrity and aesthetics of the image.

[0056] Specifically, refer to Figure 4 If image region B1 is identified as a blank area, an image region B3 of 0.5 units can be added to image region B2 on the side furthest from the target image B. This ensures that the target image B can still be filled to the 1:2 screen ratio of the second device 2, preventing blank areas from affecting the user experience in the final target display image C.

[0057] If the image frame is irregularly shaped, the same method can be used to supplement the image region. For example, first find the center point O of the target image B, and then supplement the image region in the directions above, below, left, and right of the center point O to transform the irregular target image B into a target image B with a regular shape (rectangle). Then, the above method can be used for subsequent image region supplementation.

[0058] In some examples, methods for selecting the center point O may include the minimum bounding rectangle (MBR) centering method, the contour polygon fitting centering method, the skeleton extraction and midline intersection method, etc.

[0059] In some examples, the display method may include step S500: displaying the target display image C on the screen of the second device 2.

[0060] In some examples, after the correction is completed, the second device 2 can display the obtained target display image C on its screen. For example, the target display image C can be scaled proportionally before being displayed on the screen of the second device 2. Thus, the target display image C can fully utilize the screen space of the second device 2, avoiding black borders or image distortion, and providing the best visual experience.

[0061] In some examples, the display method may also include step S300: determining whether the aspect ratio of the target image B is the same as the screen aspect ratio of the second device 2.

[0062] In some examples, after receiving the initial image A and the target image B, the second device 2 will first obtain the screen ratio of its own screen (e.g., the aspect ratio of its own screen), and then calculate the image ratio of the target image B (e.g., the aspect ratio of the target image B).

[0063] In some examples, the second device 2 can compare the two scale values ​​to determine if they are the same. If the two scale values ​​are the same, the target image B is directly scaled proportionally and displayed on the screen of the second device 2 (i.e., step S500 is executed); if the two scale values ​​are not the same, the next step can be executed (i.e., step S400 is executed).

[0064] In a preferred embodiment, the first device 1 can be a smart device such as a mobile phone, tablet, or computer, and the second device 2 can be a display device such as a digital photo frame, portable screen, or freeform screen. This image display method is particularly suitable for scenarios where photos on a mobile phone or tablet are quickly transferred to a large-screen device for display. Users can easily select and edit the parts of the image they want to display, while the second device 2 automatically processes the image to adapt to display devices with different screen ratios.

[0065] Figure 6 This is a functional block diagram illustrating the image processing apparatus 10 and the image display apparatus 20 involved in the example of the present invention.

[0066] Reference Figure 6The present invention also provides an image processing apparatus 10, which can be applied to a first device 1.

[0067] In some examples, the image processing device 10 may include a selection module 101 and a first communication module 102.

[0068] In some instances, the selection module 101 can be configured to select an initial image A and then select and crop the target image B from the initial image A using a preset image frame.

[0069] In some examples, the first communication module 102 may be configured to send an initial image A and a target image B to the second device 2.

[0070] In some examples, the first communication module 102 can be a wireless communication module, such as a WiFi module, Bluetooth module, or mobile communication module, or a wired communication module, such as a USB interface, HDMI interface, etc.

[0071] Reference Figure 6 The present invention also provides an image display device 20 (hereinafter sometimes simply referred to as display device 20), which can be applied to a second device 2.

[0072] In some examples, the display device 20 may include a second communication module 202, a correction module 201, and a display module 203.

[0073] In some examples, the second communication module 202 can be used to receive the initial image A and the target image B.

[0074] In some examples, the second communication module 202 can be a wireless communication module, such as a WiFi module, Bluetooth module, or mobile communication module, or a wired communication module, such as a USB interface or HDMI interface.

[0075] In some examples, the second communication module 202 can be electrically connected to other components of the second device 2 and is capable of receiving initial image A and target image B data transmitted from an external device (first device 1). The initial image A and target image B received by the second communication module 202 can be image files of various formats, such as JPEG, PNG, BMP, etc.

[0076] In some examples, the correction module 201 may be electrically connected to the second communication module 202. The correction module 201 may be configured to correct the target image B based on the screen ratio of the second device 2 and the initial image A to obtain a target display image C that conforms to the screen ratio of the second device 2.

[0077] In some examples, the correction module 201 may be a processor or a dedicated image processing chip in the second device 2, which works in conjunction with the corresponding image processing algorithm to implement the image correction function.

[0078] In some examples, during the correction process, the correction module 201 can first obtain the screen aspect ratio parameters of the second device 2, such as 2:1, 16:9, 4:3, 18:9, etc. In some examples, the correction module 201 can analyze the image parameters of the initial image A, including but not limited to the resolution, aspect ratio, and color depth of the initial image A. Based on these parameters, the correction module 201 performs a series of processes on the target image B, including scaling, rotation, and adjusting brightness and contrast, so that the final generated target display image C can perfectly fit the screen display area of ​​the second device 2.

[0079] In some examples, the correction module 201 can simultaneously analyze the positional relationship between the initial image A and the target image B, and then perform image region supplementation, scaling and other processing on the target image B based on this information, so that the final generated target display image C can perfectly fit the screen of the second device 2.

[0080] In some examples, the correction module 201 may also include an image quality enhancement submodule, which can be configured to perform image quality enhancement processing on the target image B. Image quality enhancement processing includes, but is not limited to, sharpening, noise reduction, and color enhancement to improve the display effect of the target display image C.

[0081] In some examples, the correction module 201 may also include an image format conversion submodule, which can be configured to convert the target image B to an image format supported by the second device 2 when the image format of the target image B does not match the image format supported by the second device 2. For example, converting JPEG format to PNG format, or RAW format to JPEG format, etc.

[0082] In some examples, when correcting target image B, correction module 201 can first obtain the image ratio of target image B and the screen ratio of the second device 2, and then determine whether they are consistent. If they are consistent, no correction is needed; if they are inconsistent, target image B is corrected accordingly based on its positional relationship with the initial image A. In another preferred embodiment, correction module 201 can also adjust the resolution of target image B according to the screen resolution of the second device 2 to ensure that target display image C is displayed with optimal clarity on the second device 2. For example, when the screen resolution of the second device 2 is 1920×1080 pixels, correction module 201 will adjust target image B to the corresponding resolution to obtain the best display effect.

[0083] In some examples, the correction module 201 can also adjust the color and brightness of the target image B according to parameters such as the screen brightness and color saturation of the second device 2, so that the target display image C can be displayed better on the second device 2.

[0084] In some examples, display module 203 may be electrically connected to correction module 201 to display the target display image C on the screen of second device 2. Display module 203 may be an LCD screen, OLED screen, or other type of display, responsible for presenting the corrected target display image C to the user. Display module 203 receives the target display image C data output by correction module 201 and controls the display state of each pixel on the screen through driving circuitry, thereby fully presenting the target display image C on the screen.

[0085] In some examples, the display module 203 can make final fine adjustments to the target display image C based on the screen characteristics of the second device 2, such as brightness, contrast, color saturation, etc., to ensure that the target display image C has the best display effect on the second device 2.

[0086] In some examples, the display module 203 may also include a display effect adjustment submodule, which can be configured to dynamically adjust the display parameters of the target display image C, such as brightness, contrast, and color temperature, according to the screen characteristics of the second device 2 and the ambient light conditions, in order to provide the best viewing experience.

[0087] In some examples, the display module 203 may also include a split-screen display submodule, which can be configured to simultaneously display multiple target display images C on the screen of the second device 2, thereby realizing the split-screen display function. The split-screen display can be a dual-screen display, a four-screen display, or other multi-screen display modes, and each split-screen area can display a different target display image C.

[0088] In some examples, the display module 203 may also include touch functionality, allowing users to manipulate the displayed target image C by touching the screen, such as zooming in, zooming out, or rotating. The display module 203 can convert the user's touch operations into corresponding instructions, pass them to the correction module 201 for further image processing, and then re-display the processed image on the screen.

[0089] In some examples, the operation of the image display device 20 may include: first, the second communication module 202 receives an initial image A and a target image B; then, the correction module 201 corrects the target image B according to the screen ratio of the second device 2 and the initial image A, generating a target display image C; finally, the display module 203 displays the target display image C on the screen of the second device 2. In this way, even if the original ratio of the target image B is inconsistent with the screen ratio of the second device 2, a good display effect can still be obtained on the second device 2, improving the user experience.

[0090] Figure 7 This is a functional block diagram illustrating Embodiment 2 of the communication system involved in the example of the present invention.

[0091] Reference Figures 5 to 7 The present invention also provides a communication system, which may include a first device 1 and a second device 2 communicatively connected to the first device 1. This communication system can transmit images from the first device 1 to the second device 2 and display the images using the second device 2.

[0092] In some examples, the first device 1 may include a first memory 11 and a first processor 12. The first memory 11 may store an image operation program, which can run on the first processor 12.

[0093] In some examples, the second device 2 may include a second memory 21 and a second processor 22. The second memory 21 may store a display program for an image, which can run on the second processor 22.

[0094] In some examples, the communication system implements the above-described image display method by transmitting the image from the first device 1 to the second device 2, where the second device 2 displays the image. The specific implementation process is as follows.

[0095] First, the initial image A is selected through the selection module of the first device 1, and the target image B in the initial image A is selected and cropped using a preset image frame. The user can browse and select the initial image A to be processed on the first device 1, and then select the area of ​​interest in the target image B on the initial image A using an input device such as a touch screen or mouse. The first device can then crop the area to obtain the target image B.

[0096] Next, the first communication module 102 of the first device 1 can send the initial image A and the target image B to the second device 2. This transmission process can be achieved through a wired connection (such as USB, HDMI) or a wireless connection (such as WiFi, Bluetooth), ensuring that the image data is completely transmitted to the second device 2.

[0097] In some examples, after the second communication module 202 of the second device 2 receives the initial image A and the target image B, the correction module 201 of the second device 2 can first determine whether the image ratio of the target image B is the same as the screen ratio of the second device 2. If the ratios are different, further correction processing is required; if the ratios are the same, the display module 203 can directly display the image.

[0098] In some examples, when correction is required, correction module 201 can correct target image B based on the screen ratio of second device 2 and initial image A to obtain target display image C that conforms to the screen ratio of second device 2.

[0099] In some examples, the correction process is based on the center point of the target image B. Specifically, the correction module 201 can supplement the target image B with image regions along the horizontal and / or vertical axes, making the aspect ratio of the target image B equal to the screen ratio of the second device 2. The supplemented image regions are derived from the image regions in the initial image A adjacent to the target image B, which ensures the continuity and integrity of the displayed content.

[0100] In some examples, when performing image region supplementation, the correction module 201 can supplement the target image B proportionally in the left-right direction about the horizontal axis, and / or proportionally in the up-down direction about the vertical axis, based on the initial image A. This supplementation method ensures that the central content of the target image B is not distorted or shifted, while maintaining the overall image ratio consistent with the screen ratio of the second device 2. This proportional supplementation ensures the visual balance of the final displayed image.

[0101] In some examples, if the correction module 201 identifies certain image regions as blank areas after image region supplementation (e.g., when the target image B is located at the edge of the initial image A), it will use the image region of the initial image A on the other side of the blank area to supplement the target image B. This intelligent supplementation mechanism ensures that the final displayed image does not have obvious blank areas, improving the integrity and aesthetics of the display effect.

[0102] Finally, the display module 203 of the second device 2 can display the corrected target image C on its screen. The user can see a properly corrected, proportionate image on the second device 2, achieving optimal display without manual adjustment.

[0103] This communication system, through the collaborative operation of the first device 1 and the second device 2, achieves intelligent image selection, transmission, correction, and display functions. It is particularly suitable for cross-device image sharing and display scenarios, such as family photo displays, conference presentations, and educational demonstrations. The system can automatically adjust the image display effect according to the screen characteristics of different devices, improving user experience and display efficiency.

[0104] Using the image display method described above, users can flexibly select any area from the initial image A as the target image B. The second device 2 will intelligently correct the target image B to fit the screen ratio of the second device 2, thereby providing a better image display effect. This method solves the image display problem caused by inconsistent screen ratios between different devices, improving the user experience.

[0105] While the invention has been specifically described above in conjunction with the accompanying drawings and examples, it is to be understood that the above description does not limit the invention in any way. Those skilled in the art can make modifications and variations to the invention as needed without departing from its essential spirit and scope, and all such modifications and variations fall within the scope of the invention.

Claims

1. A method for displaying an image, characterized in that, The display method is a method of transmitting an image from a first device to a second device and displaying the image by the second device, the display method comprising: The first device selects an initial image and uses a preset image frame to select a target image within the initial image; The initial image and the target image are sent to the second device; The target image is corrected based on the screen ratio of the second device and the initial image to obtain a target display image that conforms to the screen ratio of the second device; The target image is displayed on the screen of the second device.

2. The image display method according to claim 1, characterized in that, After sending the initial image and the target image to the second device, the method further includes: Determine whether the image ratio of the target image is the same as the screen ratio of the second device. If they are not the same, proceed to the next step.

3. The image display method according to claim 1, characterized in that, The correction includes: supplementing the target image with image regions along the horizontal and / or vertical axes based on the center point of the target image, so that the aspect ratio of the target image is equal to the screen ratio of the second device, wherein the supplemented image regions are derived from image regions in the initial image adjacent to the target image.

4. The image display method according to claim 3, characterized in that, The target image is supplemented with a proportionally proportional image region in the left-right direction about the horizontal axis, and / or, the target image is supplemented with a proportionally proportional image region in the up-down direction about the vertical axis.

5. The image display method according to claim 4, characterized in that, If, after supplementing the image region, a blank area is identified, then the target image is supplemented using the image region of the initial image on the other side of the blank area.

6. The image display method according to claim 1, characterized in that, The preset image frame can be a rectangle, circle, ellipse, or irregular shape.

7. The image display method according to claim 1, characterized in that, The first device is a mobile phone, tablet or computer, and the second device is a digital photo frame, portable screen or free screen.

8. An image processing apparatus, characterized in that, The image processing apparatus is applied to the first device, and the image processing apparatus includes: The selection module is configured to select an initial image and then select and crop the target image from the initial image using a preset image frame. The first communication module is configured to send the initial image and the target image to the second device.

9. An image display device, characterized in that, The image display device is applied to the second device, and the image display device includes: The second communication module is configured to receive the initial image and the target image; The correction module is configured to correct the target image based on the screen ratio of the second device and the initial image to obtain a target display image that conforms to the screen ratio of the second device; The display module is configured to display the target image on the screen of the second device.

10. A communication system, characterized in that, The communication system includes a first device and a second device communicatively connected to the first device. The first device includes a first memory, a first processor, and an image operation program stored in the first memory and executable on the first processor. The second device includes a second memory, a second processor, and an image display program stored in the second memory and executable on the second processor. The image operation program is executed by the first processor, and when the image display program is executed by the second processor, it implements the image display method as described in any one of claims 1-7.

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