CN110806845B - Image display control method, system and storage medium - Google Patents
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Abstract
The invention relates to an image display control method, an image display control system and a storage medium. The image display control method includes the steps of: acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions; acquiring an image frame, and decomposing the image frame into a plurality of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic value intervals of at least two adjacent virtual areas are different; and sending the uneven frames of the plurality of frames to a display terminal for display. The image frame is divided into areas, the image frame is decomposed into a plurality of uneven frames, and a virtual area of each uneven frame displays a preset chromaticity interval, so that the shooting frame generates color difference in the areas corresponding to the virtual areas of two different chromaticity intervals, and the anti-shooting effect is achieved.
Description
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to an image display control method, system, and storage medium.
Background
Since the birth of the movie, the piracy problem is accompanied with the whole development process of the movie, and from the initial pirated compact disc to the download link on the internet, the piracy problem seriously affects the healthy development of the movie industry. How to prevent piracy is a long-term research issue.
For new movies, the box office of the first week appears to be particularly important, and thus the piracy protection of the first week of showing is also the strongest. Currently, the commonly adopted anti-piracy measures are: in the aspect of cinema management, the management of film copy is enhanced, and meanwhile, in the film watching field, the photo taking and the shooting of audiences are prohibited through the supervision of an enhanced person. The mode that the supervision forbids audiences to take pictures and take pictures is enhanced, on one hand, the film watching experience of other audiences is greatly influenced, on the other hand, time and labor are consumed, and the effect is not ideal. If the anti-theft can be realized by processing the image of the played video, the method is the most ideal processing method, however, no mature scheme is available at present.
Disclosure of Invention
In view of the above, it is necessary to provide an image display control method, system, and storage medium for solving the problem of difficulty in performing anti-theft processing on video images.
A first aspect of the present application provides an image display control method, including the steps of:
acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions;
acquiring an image frame, and decomposing the image frame into a plurality of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic value intervals of at least two adjacent virtual areas are different;
and sending the uneven frames of the plurality of frames to a display terminal for display.
In one embodiment, the display terminal is an LED display screen, and the sub-regions of the virtual frame template are divided in the following manner:
the method comprises the following steps of one or more of box body division, load area division according to a control card, control area division according to an FPGA chip and pixel point array division.
In one embodiment, the step of decomposing the image frame into multiple non-uniform frames according to the virtual frame template and the chrominance values specifically includes:
carrying out frequency doubling processing on the image frames to obtain a plurality of frequency doubling frames;
and processing the frequency doubling frame according to a preset strategy according to the virtual frame template and the chromatic value to obtain an uneven frame.
In one embodiment, the step of processing the frequency-doubled frame according to the virtual frame template and the chrominance value and a preset strategy to obtain the non-uniform frame specifically includes:
dividing the frequency multiplication frame into a plurality of preprocessing areas according to the virtual frame template, wherein each preprocessing area corresponds to a sub-area of the virtual frame template;
acquiring chromatic values or chromatic intervals corresponding to the pretreatment areas;
and carrying out chroma decomposition on the pixels in the preprocessing area to enable the pixels in the preprocessing area to be in corresponding chroma values or chroma intervals, and obtaining the uneven frame.
In one embodiment, the step of sending the plurality of uneven frames to the display terminal for display specifically includes:
arranging and combining a plurality of uneven frames according to the time slot sequence;
and sending the rearranged uneven frames to a display terminal for display.
In one embodiment, in a frame of the non-uniform frame, the chrominance values or chrominance intervals of any two adjacent virtual areas are different.
According to the image display control method, the image frame is divided into the regions, the image frame is decomposed into the plurality of uneven frames, the virtual region of each uneven frame displays the preset chromaticity region, when shooting is carried out, if the whole group of uneven frames are not shot, the regions corresponding to the virtual regions of two different chromaticity regions generate color difference, the watching effect of the shot frame is influenced, and when the color difference regions are dense to a certain degree, the eyes of people watch the images to generate dazzling and dizziness, so that the purpose of preventing shooting is achieved.
A second aspect of the present application provides an image display control system comprising:
the template acquisition component is used for acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions;
the image frame decomposition component is used for acquiring an image frame and decomposing the image frame into a plurality of frames of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic values of at least two adjacent virtual areas are different;
and the sending component is used for sending the uneven frames of the plurality of frames to the display terminal for displaying.
In one embodiment, the image frame decomposition unit comprises:
an image frame acquisition component for acquiring an image frame;
the frequency doubling component is used for carrying out frequency doubling processing on the image frames to obtain a plurality of frequency doubling frames;
the decomposition component is used for processing the frequency doubling frame according to a virtual frame template and a chromatic value and a preset strategy to obtain an uneven frame; wherein the decomposition component comprises:
the dividing subassembly is used for dividing the frequency multiplication frame into a plurality of preprocessing areas according to the virtual frame template, and each preprocessing area corresponds to one sub-area of the virtual frame template;
the chrominance acquisition subassembly is used for acquiring chrominance values or chrominance intervals corresponding to the preprocessing areas;
and the chrominance decomposition subassembly is used for carrying out chrominance decomposition on the pixels in the preprocessing area so that the pixels in the preprocessing area are positioned in the corresponding chrominance values or chrominance intervals to obtain the uneven frame.
In one embodiment, the transmitting means comprises:
the rearrangement component is used for arranging and combining the multi-frame uneven frames according to the time slot sequence;
and the sending component is used for sending the rearranged uneven frames to a display terminal for displaying.
The image display control system divides the image frame into areas and decomposes the image frame into a plurality of uneven frames, the virtual area of each uneven frame displays a preset chromaticity interval, when shooting is carried out, if the whole group of uneven frames are not shot, chromatic aberration is generated in the areas corresponding to the virtual areas of two different chromaticity intervals, the watching effect of the shot frames is influenced, when the chromatic aberration areas are dense to a certain degree, the eyes of people watch the uneven frames, and the shooting prevention purpose is achieved.
A third aspect of the present invention provides a machine-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the image display control method of any one of the above.
Drawings
FIG. 1 is a flowchart illustrating an image display control method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a virtual frame template of an image display control method according to an embodiment of the present invention;
FIG. 3 is an exploded view of an image frame of an image display control method according to an embodiment of the invention;
FIG. 4 is a diagram illustrating a display process of an uneven frame in the image display control method according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an image display control method according to another embodiment of the present invention;
FIG. 6 is a flowchart illustrating an image display control method according to another embodiment of the present invention;
FIG. 7 is a diagram illustrating a display process of an uneven frame in a local area of an image display control method according to an embodiment of the present invention;
FIG. 8 is a diagram illustrating another display process of an uneven frame in a local area of an image display control method according to an embodiment of the present invention;
FIG. 9 is a flowchart of an image display control method according to another embodiment of the present invention;
FIG. 10 is a block diagram of an image display control system according to an embodiment of the present invention;
fig. 11 is a frame configuration diagram of an image display control system according to another embodiment of the present invention;
fig. 12 is a frame configuration diagram of an image display control system according to still another embodiment of the present invention;
fig. 13 is a frame configuration diagram of an image display control system according to still another embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
According to the image display control method of each embodiment of the application, the image frames are processed, so that when the image frames are displayed on the display terminal, the multiple areas on the display interface have color differences, when people observe the image frames, normal watching can be realized due to orderly and continuous display of multiple frames, the shooting frames shot by the camera generate a sense of incongruity due to the color differences of the different areas, the observability of the shooting images is reduced, and the anti-shooting effect is achieved.
The image display control method of each embodiment of the present application is described in detail below.
Referring to fig. 1, fig. 1 is a flowchart illustrating an image display control method according to an embodiment of the present invention, which can be applied to various video playback scenes, such as movie theaters. For preventing video from being candid and thus avoiding commercial losses. As shown in fig. 1, the image display control method may include the steps of:
s10: acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions;
when the video image is displayed on the display terminal, the displayed chromaticities of different areas of the display interface are inconsistent, the video image needs to be subjected to area division, and then the chromaticities of the different divided areas are adjusted. When the video image is sent to the display terminal for display, the display interface of the display terminal is fully paved, so that the image frame of the video image has a corresponding relation with the display interface, and the virtual frame template can be determined by utilizing the corresponding relation.
The video image is transmitted in the form of image frames, one frame of which is adapted to the picture finally displayed on the display terminal, whereby the image frames are divided into a plurality of sub-areas by logically dividing the image frames, each sub-area corresponding to a small area on the display terminal. Therefore, different areas of the picture finally displayed on the display terminal can display different chromaticities by only adjusting the chromaticities of the plurality of sub-areas of the image frame to enable the plurality of sub-areas to have different chromaticity values or chromaticity intervals.
And dividing the image frame into a plurality of sub-regions, namely the virtual frame template. A template may be predetermined as a virtual frame template, and then the image frame may be divided into regions according to the virtual frame template.
Referring to fig. 2, an exemplary virtual frame template is shown, wherein the virtual frame template includes a plurality of sub-regions 10 arranged in a grid, each sub-region 10 is substantially rectangular, and the plurality of sub-regions 10 are arranged in an array. It can be understood that this is only a relatively simple sub-region dividing manner, and particularly in application, the specific dividing manner of the sub-region may be determined according to actual requirements or device layout.
In a specific embodiment, the display terminal may be an LED display screen, and the LED display screen may be formed by splicing a plurality of LED boxes, so that sub-areas may be divided according to the LED boxes. Each box body is provided with an FPGA chip and a control card, a plurality of FPGA chips and a plurality of control cards can be arranged on the LED box body, each FPGA chip controls the content display of a part of display area, and each control card has a part of display area, so that the control area of the FPGA chip or the control card can be divided according to the control area of the FPGA chip or the control area of the control card. Of course, various division methods can be combined. For example, in a specific application, the load area division of the control card can be used, and the image display control method can be conveniently related to the image distribution of the LED display screen.
S20: acquiring an image frame, and decomposing the image frame into a plurality of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic value intervals of at least two adjacent virtual areas are different;
when the video image is transmitted, the continuous image frames are transmitted between the video source end and the display terminal, therefore, an image processing device can be additionally arranged between the video source end and the display terminal to realize the processing of the image display control method, and the image frames are processed and then transmitted to the display terminal for display. The video image is transmitted in units of image frames, and thus, the processing of the video image is also performed in units of image frames. Before the image frame processing, the image frame needs to be acquired from the video source end, or the image frame sent by the video source end is received.
After the image frame is obtained, the image frame can be processed, the image frame is divided into a plurality of areas according to a virtual frame template, then the divided areas are respectively processed according to the chromaticity, one image frame is decomposed into a plurality of uneven frames, and the uneven frames are provided with a plurality of virtual areas. After the image frames are divided according to the virtual frame template, the divided areas of the image frames are subjected to chrominance decomposition processing, and the divided areas of the image frames are correspondingly decomposed to obtain a plurality of virtual areas belonging to different uneven frames. It is understood that when performing chroma decomposition, a plurality of divided regions of each image frame are processed synchronously to obtain a plurality of uneven frames, and the virtual region, the divided regions of the image frame correspond to sub-regions of the virtual frame template. The chromaticity value or chromaticity interval of each virtual area may be predetermined such that each virtual area has a preset chromaticity value or chromaticity interval in the resulting uneven frame. For example, the virtual frame template may include chrominance information of each sub-region, and when performing chrominance decomposition on the divided regions of the image frame, the chrominance information of the corresponding sub-region may be acquired first, and then the chrominance decomposition is performed, so that the storage of the chrominance information of the virtual region is realized by using the corresponding relationship between the sub-region and the virtual region, which is convenient to acquire.
In a specific embodiment, the chrominance values or chrominance intervals of at least two adjacent virtual areas are different, so that when an uneven frame is displayed on a display terminal, at least two areas in the uneven frame obtained by shooting the frame have chrominance differences, and when the areas with the chrominance differences are larger than a certain value, even if a picture generates a sense of incongruity, the viewing experience of the shot video is affected, for example, the chrominance values or chrominance intervals of any two adjacent virtual areas can be different, the viewing experience of the shot frame is greatly reduced, and the anti-shooting effect is improved.
Referring to fig. 3, in one specific embodiment, one frame of image frame may be decomposed into two non-uniform frames, a plurality of virtual areas of the non-uniform frames have two chrominance regions, wherein one part of the virtual areas displays red-blue (RB virtual area), the other part of the virtual areas displays green (G virtual area), the red-blue virtual area and the green virtual area are arranged at intervals, when displaying, the two non-uniform frames are sequentially sent to a display terminal for displaying, the previous frame displays the display area of the red-blue virtual area, the next frame displays the green virtual area, and the two non-uniform frames complete the complete display of one image together. Of course, the division of the chrominance interval into one of the exemplary operations is performed according to the red-blue color and the green color, and in a specific application, each virtual area may be assigned with a chrominance value or a chrominance interval to obtain an uneven frame. A frame of image is not limited to being decomposed into two uneven frames, and three, four or more uneven frames can have similar effects.
S30: and sending the uneven frames of the plurality of frames to a display terminal for display.
And carrying out chroma decomposition on one frame of image frame to obtain a group of uneven frames, wherein the group of uneven frames comprises a plurality of uneven frames, and then sending the plurality of uneven frames to a display terminal for displaying. It can be understood that the image frames are processed in sequence, and the obtained uneven frames are also sent to the display terminal for display according to the sequence of the groups, so as to ensure the display effect.
Referring to fig. 4, since one image frame is decomposed into a plurality of non-uniform frames, the plurality of non-uniform frames are displayed in a very short time, and the display effect is almost the same as that of directly displaying the image frame. However, when shooting is performed using a camera, since the opening of the camera shutter has an interval, the video captured by the opening of the camera shutter is not in units of image frames but in units of uneven frames without background synchronization, and thus the number of uneven frames captured may not correspond to the image frames, that is, the shooting frames captured by the camera include uneven frames that do not correspond to the original image frames but belong to different image frames. For example, in a limit state, when only one non-uniform frame is captured in one captured frame, if at least two adjacent virtual areas in the plurality of virtual areas of the non-uniform frame have a chromaticity difference, a sense of incongruity is generated in the area pictures corresponding to the two adjacent virtual areas of the captured frame due to the chromaticity difference, and if a chromaticity difference exists between any two adjacent virtual areas, a sense of incongruity is generated when the human eye views the captured frame due to the chromaticity difference between the plurality of densely distributed areas, and the human eye views the captured frame over a long period of time, thereby causing a feeling of dazzling and vertigo, which results in an extremely poor viewing effect.
During shooting, one shooting frame may be based on the whole group of uneven frames, and one more uneven frame or multiple frames may be added, for example, one shooting frame is equal to 1.5 groups of uneven frames (each group of uneven frames corresponds to one frame of image frame), so that after the added uneven frames are overlapped with the whole group of uneven frames, on one hand, areas corresponding to multiple virtual areas generate color cast phenomenon to affect the picture effect of a single virtual area, on the other hand, as long as color cast exists between virtual areas, different areas corresponding to different virtual areas generate different color cast after being overlapped, and color cast also exists between areas corresponding to each virtual area in the shooting frame, so that the pictures of the shooting frames are not coordinated, and the multiple color cast areas of the pictures reduce the friendliness of the pictures to human eyes, and even if the pictures are watched for a long time, the watching effect of the shooting frames is greatly reduced.
As shown in fig. 4, taking the embodiment shown in fig. 3 as an example, a frame image frame is decomposed into two uneven frames, a plurality of virtual areas of the uneven frames are processed to display red-blue and green, and a chromaticity difference exists between any two adjacent virtual areas, i.e. four sides of one red-blue virtual area are all green virtual areas, and four sides of one green virtual area are all red-blue virtual areas. After the image frames are decomposed, the two uneven frames are successively sent to a display terminal for display. The display terminal displays a plurality of frames of uneven frames corresponding to one frame of image frame in sequence, if the display terminal is shot by a camera, if the opening time of the shutter does not correspond to the image frame, the shooting picture has different color cast areas of dense and rough images and two adjacent areas, either green or red and blue, the watching effect of the shooting frame is greatly reduced, the friendliness to human eyes is reduced rapidly, and the eyes are dazzled after long-term watching.
It can be understood that the size of the virtual area is suitable, and is not suitable to be too large or too small, the too large size can reduce the color difference feeling among different areas, reduce the anti-shooting effect, and the too small size can not catch the human eyes and also influence the anti-shooting effect. The size of the virtual area should be such that the human eye can directly recognize the display area corresponding to the virtual area in the image.
Referring to fig. 5, in one or more embodiments, the step of decomposing the image frame into a plurality of non-uniform frames according to the virtual frame template and the chrominance values may include the following sub-steps:
s23: carrying out frequency doubling processing on the image frames to obtain a plurality of frequency doubling frames;
s25: and processing the frequency doubling frame according to a preset strategy according to the virtual frame template and the chromatic value to obtain an uneven frame.
When the image frame is decomposed, frequency multiplication processing can be performed on the image frame to obtain a plurality of frequency multiplication frames, and the sum of the display time of the frequency multiplication frames is equal to the display time of the image frame before frequency multiplication. Then, the multiple frequency multiplication frames are processed to obtain uneven frames. The image of the frequency doubling frame is consistent with the image of the original image frame, only the display frequency is increased, and the image frame can be regarded as being copied for multiple times, a plurality of copied frames share the display time of the original image frame, and the copied frame is the frequency doubling frame. It will be appreciated that the multiple of the octave is adapted to the number of uneven frames expected, and thus, the octave and uneven frames do not correspond.
After the frequency doubling frame is obtained, the uneven frame can be obtained by processing on the basis of the frequency doubling frame. Referring to fig. 6, in one or more embodiments, the step of processing the frequency-doubled frame according to the virtual frame template and the chrominance value according to the predetermined policy to obtain the non-uniform frame may include the following sub-steps:
s251: dividing the frequency multiplication frame into a plurality of preprocessing areas according to the virtual frame template, wherein each preprocessing area corresponds to a sub-area of the virtual frame template;
s253: acquiring chromatic values or chromatic intervals corresponding to the pretreatment areas;
s255: and carrying out chroma decomposition on the pixels in the preprocessing area to enable the pixels in the preprocessing area to be in corresponding chroma values or chroma intervals, and obtaining the uneven frame.
Firstly, dividing a frequency multiplication frame into a plurality of preprocessing regions according to the division of a plurality of sub-regions on a virtual frame template, wherein each preprocessing region corresponds to one sub-region, and then processing each preprocessing region to obtain a virtual region. In a specific embodiment, each virtual area may correspond to a chrominance value or a chrominance interval, before image processing is performed on the pre-processing area, the chrominance value or the chrominance interval corresponding to the pre-processing area is obtained, and then chrominance decomposition processing is performed on the pre-processing area according to the chrominance value or the chrominance interval, so that the chrominance value of pixels in the pre-processing area is within a preset chrominance value or chrominance interval. After the chroma decomposition is executed, the pixels in each preprocessing area are all in a preset chroma value or a preset chroma interval, and then the virtual area is obtained.
After pixels at the same position of the uneven frames of the plurality of frames are superposed, the chroma value of the pixels is kept consistent with that of the image frame. Taking an example of decomposing one image frame into two non-uniform frames, the chroma value of X pixel in the image frame may be described as X (R0, G0, B0), and the chroma value of X1 of a co-located pixel in one of the two non-uniform frames is X1(R1, G1, B1), and the chroma value of X2 of a co-located pixel in the other non-uniform frame is X2(R2, G2, B2), then R0 ═ R1+ R2, G0 ═ G1+ G2, and B0 ═ B1+ B2. Therefore, after the uneven frames of the plurality of frames are displayed in an overlapping mode, the display effect is consistent with that of the image frames. For example, one pixel may be simply decomposed into red, blue and green, and then the pixel X (R0, G0, B0) may be decomposed into X1(R0, 0, B0) and X2(0, G0, 0), and after performing the chroma decomposition, X1 and X2 respectively correspond to the pixels at the same position of two non-uniform frames, and are overlapped before and after displaying.
In one or more embodiments, the same image frame corresponds to multiple uneven frames, and the virtual areas of different uneven frames at the same position have different chromaticities. Thus, for a plurality of groups of uneven frames belonging to different image frames displayed at the same position, the anti-shooting effect can be realized at the display position corresponding to one virtual area in the time dimension.
Referring to fig. 7 and 8, a small area T on the display terminal corresponds to the display of a virtual area, and the image of the virtual area at the same position of a plurality of uneven frames is displayed on the area T, assuming that one frame image frame Z is decomposed into three uneven frames Z1, Z2 and Z3, the three virtual areas corresponding to the area T in the uneven frames Z1, Z2 and Z3 are R, G, B, respectively, wherein the chromaticity interval corresponding to the virtual area R is red, G is green, and B is blue. In the chroma decomposition, a pixel Y (R0, G0, B0) of one position is decomposed into red Y1(R0, 0, 0), green Y2(0, G0, 0), and blue Y3(0, 0, B0), and Y1, Y2, and Y3 belong to the virtual region R, G, B, respectively. R, G, B are sent to the region T for display. Therefore, only for the shot image of the area T, if the shutter opening time of the camera is not synchronized with the display time of the group of uneven frames, one or more uneven frames are added to one shot frame based on the whole group of uneven frames, and the added uneven frames are superimposed on the whole group of uneven frames, so that the position of the shot frame corresponding to the area T is displayed with color cast. For example, if different groups of non-uniform frames are transmitted in the order of Z1, Z2, and Z3, the order displayed in the virtual area on the area T is … RGB-RGB …, if the shutter opening time of the camera just captures 4 non-uniform frames, for example, RGBR and GBRG, color cast occurs, and when all the virtual areas generate different color cast, the captured picture is extremely unfriendly to human eyes, which affects the viewing experience of human eyes.
It is to be understood that the chrominance decomposition may be performed at the same time as the frequency doubling.
Referring to fig. 9, in one or more embodiments, the step of sending the plurality of uneven frames to the display terminal for displaying specifically includes:
s31: arranging and combining a plurality of uneven frames according to the time slot sequence;
s33: and sending the rearranged uneven frames to a display terminal for display.
If the uneven frames are rearranged and combined, even if the shutter opening time of the camera is synchronized with the display time of a group of uneven frames, the color cast phenomenon may still occur as long as the shutter opening time is not synchronized with the start frame of a group of uneven frames, and as exemplified in the embodiment of fig. 7, after the rearrangement and combination, the display order of the virtual areas of the corresponding regions T of a plurality of groups of uneven frames is … RGB-BGR-RGB-GBR …, and even if one camera frame corresponds to 3n uneven frames (n is a positive integer), the captured camera frame may still have a high probability of color cast, such as GBB (blue cast), GRR (red cast), and the like, as long as it is not synchronized with the start frame of a group of uneven frames. Therefore, the anti-shooting effect of the display area corresponding to the single virtual area is improved.
Through the permutation and combination, the anti-shooting of the display area corresponding to a single virtual area in the time dimension is realized, and then the division of multiple virtual areas generates chromatic aberration in the space dimension, so that the anti-shooting in the space dimension is realized, and the anti-shooting effect is greatly enhanced.
In a specific embodiment, the arrangement and combination of the uneven frames can be controlled by a random signal, and the random signal can be preset, for example, a video image corresponds to a group of specific signals, so that the anti-shooting effect is optimal when the group of signals corresponds to the group of signals; the random signal may also be randomly generated to reduce the potential for background cheating.
According to the image display control method, the image frame is divided into the regions, the image frame is decomposed into the plurality of uneven frames, the virtual region of each uneven frame displays the preset chromaticity region, when shooting is carried out, if the whole group of uneven frames are not shot, the regions corresponding to the virtual regions of two different chromaticity regions generate color difference, the watching effect of the shot frame is influenced, and when the color difference regions are dense to a certain degree, the eyes of people watch the images to generate dazzling and dizziness, so that the purpose of preventing shooting is achieved.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.
Referring to fig. 10, an exemplary frame structure diagram of the image display control system 100 according to an embodiment of the present application is shown, and the image display control system may specifically include the following components:
a template obtaining part 110, configured to obtain a virtual frame template, where the virtual frame template corresponds to a display interface of a display terminal and includes a plurality of sub-regions;
the image frame decomposition component 120 is configured to acquire an image frame, and decompose the image frame into multiple non-uniform frames according to a virtual frame template and chrominance values, where the non-uniform frames include multiple virtual areas corresponding to sub-areas of the virtual frame template, the chrominance values of pixels in each virtual area are in a preset chrominance value or chrominance interval, and the chrominance values or chrominance intervals of at least two adjacent virtual areas are different;
and a transmitting part 130, configured to transmit the plurality of uneven frames to a display terminal for display.
Referring to fig. 11, in some embodiments, the image frame decomposition component 120 may include the following components:
an image frame acquisition component 121 for acquiring image frames;
the frequency doubling component 123 is configured to perform frequency doubling on the image frames to obtain multiple frequency doubled frames;
the decomposition component 125 is configured to process the frequency-doubled frame according to a virtual frame template and a chrominance value and obtain an uneven frame according to a preset strategy;
referring to FIG. 12, in some embodiments, the decomposition component 125 may include the following sub-components:
a dividing subassembly 1251 for dividing the frequency-doubled frame into a plurality of pre-processing regions according to the virtual frame template, each pre-processing region corresponding to a sub-region of the virtual frame template;
a chrominance acquisition subassembly 1253 for acquiring chrominance values or chrominance intervals corresponding to the respective pre-processed areas;
and a chrominance decomposition subassembly 1255, configured to perform chrominance decomposition on the pixels in the pre-processing region, so that the pixels in the pre-processing region are in the corresponding chrominance values or chrominance intervals, and obtain an uneven frame.
Referring to fig. 13, in some embodiments, the sending component 130 may include the following components:
a rearrangement component 131, configured to arrange and combine multiple frames of uneven frames according to a time slot order;
a sending component 133, configured to send the rearranged uneven frames to a display terminal for displaying.
The image display control system 100 divides the image frame into regions, decomposes the image frame into a plurality of non-uniform frames, and displays a preset chromaticity interval in a virtual region of each non-uniform frame, and when shooting is performed, if the non-uniform frames are not shot in the whole group, color difference occurs in regions corresponding to the virtual regions of two different chromaticity intervals, which affects the viewing effect of the shot frames, and when the color difference regions are dense to a certain degree, the eyes of people can see the non-uniform frames, so that the purpose of preventing shooting is achieved.
An embodiment of the present invention also provides a machine-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the image display control method according to any of the above embodiments.
The system/computer device integrated components/modules/units, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
In the several embodiments provided in the present invention, it should be understood that the disclosed system and method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, and for example, the division of the components is only one logical division, and other divisions may be realized in practice.
In addition, each functional module/component in each embodiment of the present invention may be integrated into the same processing module/component, or each module/component may exist alone physically, or two or more modules/components may be integrated into the same module/component. The integrated modules/components can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional modules/components.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention are capable of being embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, apparatus or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An image display control method, characterized by comprising the steps of:
acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions;
acquiring an image frame, and decomposing the image frame into a plurality of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic value intervals of at least two adjacent virtual areas are different;
and sending the uneven frames of the plurality of frames to a display terminal for display.
2. The image display control method according to claim 1, wherein the display terminal is an LED display screen, and the sub-regions of the virtual frame template are divided in a manner of:
the method comprises the following steps of performing sub-area division according to a box body, performing sub-area division according to a load area of a control card arranged on the box body, performing sub-area division according to a control area of an FPGA chip arranged on the box body, and performing one or more of sub-area division according to a pixel point array.
3. The image display control method according to claim 1, wherein the step of decomposing the image frame into a plurality of non-uniform frames according to the virtual frame template and the chrominance values specifically comprises:
carrying out frequency doubling processing on the image frames to obtain a plurality of frequency doubling frames;
and processing the frequency doubling frame according to a preset strategy according to the virtual frame template and the chromatic value to obtain an uneven frame.
4. The image display control method according to claim 3, wherein the step of processing the frequency-doubled frame according to the virtual frame template and the chrominance value according to a preset strategy to obtain the non-uniform frame specifically comprises:
dividing the frequency multiplication frame into a plurality of preprocessing areas according to the virtual frame template, wherein each preprocessing area corresponds to a sub-area of the virtual frame template;
acquiring chromatic values or chromatic intervals corresponding to the pretreatment areas;
and carrying out chroma decomposition on the pixels in the preprocessing area to enable the pixels in the preprocessing area to be in corresponding chroma values or chroma intervals, and obtaining the uneven frame.
5. The image display control method according to claim 1, wherein the step of sending the plurality of uneven frames to the display terminal for display specifically comprises:
arranging and combining a plurality of uneven frames according to the time slot sequence;
and sending the rearranged uneven frames to a display terminal for display.
6. The image display control method according to claim 1, wherein any two adjacent virtual areas in one frame of the uneven frame have different chromaticity values or chromaticity intervals.
7. An image display control system characterized by comprising:
the template acquisition component is used for acquiring a virtual frame template, wherein the virtual frame template corresponds to a display interface of a display terminal and comprises a plurality of sub-regions;
the image frame decomposition component is used for acquiring an image frame and decomposing the image frame into a plurality of frames of uneven frames according to a virtual frame template and a chromatic value, wherein the uneven frames comprise a plurality of virtual areas corresponding to sub-areas of the virtual frame template, the chromatic value of a pixel in each virtual area is in a preset chromatic value or a preset chromatic value interval, and the chromatic values or the chromatic values of at least two adjacent virtual areas are different;
and the sending component is used for sending the uneven frames of the plurality of frames to the display terminal for displaying.
8. The image display control system according to claim 7, wherein the image frame decomposition means includes:
an image frame acquisition component for acquiring an image frame;
the frequency doubling component is used for carrying out frequency doubling processing on the image frames to obtain a plurality of frequency doubling frames;
the decomposition component is used for processing the frequency doubling frame according to a virtual frame template and a chromatic value and a preset strategy to obtain an uneven frame; wherein the decomposition component comprises:
the dividing subassembly is used for dividing the frequency multiplication frame into a plurality of preprocessing areas according to the virtual frame template, and each preprocessing area corresponds to one sub-area of the virtual frame template;
the chrominance acquisition subassembly is used for acquiring chrominance values or chrominance intervals corresponding to the preprocessing areas;
and the chrominance decomposition subassembly is used for carrying out chrominance decomposition on the pixels in the preprocessing area so that the pixels in the preprocessing area are positioned in the corresponding chrominance values or chrominance intervals to obtain the uneven frame.
9. The image display control system according to claim 7, wherein the transmission means includes:
the rearrangement component is used for arranging and combining the multi-frame uneven frames according to the time slot sequence;
and the sending component is used for sending the rearranged uneven frames to a display terminal for displaying.
10. A machine-readable storage medium on which a computer program is stored, wherein the computer program realizes the image display control method according to any one of claims 1 to 6 when executed by a processor.
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| CN112969080B (en) * | 2021-02-24 | 2023-06-06 | 厦门物之联智能科技有限公司 | Image processing method, system, equipment and storage medium |
| CN113115073B (en) * | 2021-04-12 | 2022-09-02 | 宜宾市天珑通讯有限公司 | Image coding method, system, device and medium capable of reducing interference |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101622867A (en) * | 2007-03-06 | 2010-01-06 | 汤姆森许可贸易公司 | Digital cinema anti-camcording method and apparatus based on image frame post-sampling |
| CN104869476A (en) * | 2015-05-18 | 2015-08-26 | 上海交通大学 | Video playing method for preventing candid shooting based on psychological vision modulation |
| CN107801055A (en) * | 2017-11-01 | 2018-03-13 | 北京邦邦共赢网络科技有限公司 | A kind of method and apparatus that image is presented |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140210965A1 (en) * | 2013-01-31 | 2014-07-31 | Jason David Goodman | Method for Securing Visual Media Utilizing Encoding Process With Optical Translation for Decoded Image Viewing |
| KR20150027604A (en) * | 2013-09-04 | 2015-03-12 | 삼성디스플레이 주식회사 | 3d image display apparatus and driving method thereof |
| CN105611426B (en) * | 2016-01-15 | 2019-04-05 | 深圳市奥拓电子股份有限公司 | A kind of virtual display image method and device |
| CN108234977B (en) * | 2018-01-12 | 2021-03-09 | 京东方科技集团股份有限公司 | Video playing method and display system |
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| CN101622867A (en) * | 2007-03-06 | 2010-01-06 | 汤姆森许可贸易公司 | Digital cinema anti-camcording method and apparatus based on image frame post-sampling |
| CN104869476A (en) * | 2015-05-18 | 2015-08-26 | 上海交通大学 | Video playing method for preventing candid shooting based on psychological vision modulation |
| CN107801055A (en) * | 2017-11-01 | 2018-03-13 | 北京邦邦共赢网络科技有限公司 | A kind of method and apparatus that image is presented |
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