CN113393803B - Picture generation method and device in correction process - Google Patents
Picture generation method and device in correction process Download PDFInfo
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- CN113393803B CN113393803B CN202110567002.9A CN202110567002A CN113393803B CN 113393803 B CN113393803 B CN 113393803B CN 202110567002 A CN202110567002 A CN 202110567002A CN 113393803 B CN113393803 B CN 113393803B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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Abstract
The invention discloses a method and a device for generating a picture in a correction process, which are applied to electronic equipment, and the method comprises the following steps: determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute; determining a target lamp point and a target adjusting strategy corresponding to the target lamp point on the LED display screen according to the target correction attribute; the brightness value and/or the color of the target lamp point are/is adjusted according to the target adjusting strategy, so that a target correction picture required in the correction process is generated on the LED display screen, the target correction picture is a regular test picture consisting of the lamp points on the LED display screen, the test picture required in the correction process can appear on the LED display screen by controlling the lamp points on the LED display screen when no video signal source exists, video images matched with different LED display screens do not need to be made in advance, the generation of the picture in the correction process is not influenced by the stability of the video signal source, and the correction effect is ensured.
Description
Technical Field
The invention relates to the technical field of correction of LED display screens, in particular to a picture generation method and device in a correction process.
Background
Currently, in the calibration process of the LED display screen, a preset testability picture (i.e. a video signal source) is presented on a computer through a sending PC terminal and transmitted to a sending device (i.e. a sending card) through a signal line. The sending device (namely, the sending card) receives the testability picture and transmits the testability picture (namely, the testability picture) to the LED display screen with the receiving device (namely, the receiving card) for display. And finally, shooting a testability picture on the LED display screen through a camera so as to finally realize the aim of correction. However, the above technical solutions have the following drawbacks: 1) the number of the LED display screen lamps is different, and the preset testability picture needs to be adjusted regularly; 2) the more the number of the lamp points of the LED display screen is, the larger the calculation amount of the computer is, and the larger load is brought to the operation of the system; 3) the loading capacity of upper computer software (namely, a sending PC end) in a computer is limited, a system can occupy most of operation resources for processing data of the computer when running, and the computer is difficult to process oversized picture data; 4) video data may be lost in the processing process, so that the correction effect is influenced; 5) after the PC sends the video signal source to the sending card, the sending card transmits the video signal source to the receiving card, which occupies the operation time of the system.
Therefore, the person skilled in the art proposes a new solution to solve the above-mentioned problems.
Disclosure of Invention
In order to overcome the problems in the related art, the invention discloses and provides a picture generation method and device in the correction process.
According to a first aspect of the disclosed embodiments of the present invention, there is provided a picture generation method in a correction process, applied to an electronic device, the method including:
determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute;
determining a target lamp point on the LED display screen according to the target correction attribute and a target adjustment strategy corresponding to the target lamp point;
and adjusting the brightness value and/or the color of the target lamp points according to the target adjustment strategy to generate a target correction picture required in the current correction process on the LED display screen, wherein the target correction picture is a regularity test picture consisting of the lamp points on the LED display screen.
Optionally, the determining a target lamp point on the LED display screen according to the target correction attribute and a target adjustment strategy corresponding to the target lamp point include:
determining a target correction function corresponding to the target correction attribute;
and determining a target lamp point on the LED display screen according to the target correction function and a target adjustment strategy corresponding to the target lamp point.
Optionally, the determining an objective correction function corresponding to the objective correction attribute includes:
determining a correction function corresponding to each correction attribute contained in the target correction attribute;
and after abstract operation is carried out on each determined correction function, the target correction function is obtained.
Optionally, the determining a target lamp point on the LED display screen according to the target correction function and a target adjustment strategy corresponding to the target lamp point include:
establishing a computer coordinate system by taking the top point at the left upper end of the LED display screen as an original point, taking a straight line which passes through the original point and is parallel to the bottom edge of the LED display screen as an x-axis and taking a straight line which passes through the original point and is parallel to the side edge of the LED display screen as a y-axis;
and operating the target function in the computer coordinate system, and determining the target lamp point and a target adjustment strategy corresponding to the target lamp point.
Optionally, the adjusting the brightness value and the color of the target lamp point according to the target adjustment strategy to generate a target correction picture required in the current correction process on the LED display screen includes:
determining a target brightness value and/or a target color corresponding to each target lamp point according to the target adjustment strategy;
and adjusting the brightness of each target lamp point to be a target brightness value, and/or adjusting the color of each target lamp point to be a target color, so that a target correction picture required in the current correction process is generated on the LED display screen.
Optionally, the method further includes:
and receiving control parameters sent by a sending PC terminal, wherein the control parameters are used for determining the target correction attributes in preset correction attributes.
Optionally, the method further includes:
acquiring a target correction image generated after the target correction picture is shot by a camera;
determining a target correction coefficient corresponding to the LED display screen according to the target correction image;
and correcting the lamp points on the LED display screen according to the target correction coefficient.
According to a second aspect of the disclosed embodiments of the present invention, there is provided a picture generation apparatus in a correction process, applied to an electronic device, the apparatus including:
the attribute determining module is used for determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute;
the strategy determining module is connected with the attribute determining module, and is used for determining a target lamp point on the LED display screen according to the target correction attribute and a target adjusting strategy corresponding to the target lamp point;
and the picture generation module is connected with the strategy determination module and is used for adjusting the brightness value and/or the color of the target lamp points according to the target adjustment strategy so as to generate a target correction picture required in the current correction process on the LED display screen, wherein the target correction picture is a regularity test picture consisting of the lamp points on the LED display screen.
Optionally, the policy determining module includes:
a function determination unit that determines a target correction function corresponding to the target correction attribute;
and the strategy determining unit is connected with the function determining unit, determines a target lamp point on the LED display screen according to the target correction function, and determines a target adjusting strategy corresponding to the target lamp point.
Optionally, the apparatus further comprises:
the image generation module is connected with the picture generation module and used for acquiring a target correction image generated after the target correction picture is shot by a camera;
the coefficient determining module is connected with the image generating module and determines a target correction coefficient corresponding to the LED display screen according to the target correction image;
and the lamp point correction module is connected with the coefficient determination module and is used for correcting the lamp points on the LED display screen according to the target correction coefficient.
The technical scheme of the invention has the beneficial effects
The use of a non-video source format for transmitting the test pictures required for correction enables at least the following advantages to be achieved:
1. the testability picture in the correction process is generated by controlling the change of the lamp points on the LED display screen, so that the situation that partial loss of video data possibly occurs in the original transmission process in the form of a video source is avoided, and the correction effect is ensured;
2. the correction functions corresponding to different correction attributes are preset, images matched with the LED display screens do not need to be manufactured manually, labor can be saved, efficiency is improved, regular testability pictures generated by operating the target correction functions corresponding to the target correction attributes can be matched with different LED display screens, and the matching degree between the generated testability pictures and different LED display screens is improved;
3. when the LED display screen with larger size is corrected, the number of lamp points on the LED display screen does not need to be considered, the influence of the running capability of a computer is avoided, and the load caused by the running of a system is reduced;
4. the sending card composed of the FPGA sends a correction instruction to the receiving card and the target correction attribute which needs to be corrected in the correction process so as to control the LED display screen corresponding to the receiving card to present a testability picture, thereby saving the time for sending the video signal source by the receiving PC end and improving the running speed.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow diagram illustrating a picture generation method in a correction process in accordance with an exemplary embodiment;
FIG. 2 is a flow chart of a policy determination method according to the one shown in FIG. 1;
FIG. 3 is a flow chart of a picture generation method according to that shown in FIG. 1;
FIG. 4 is a flow chart of a picture generation method according to another correction process shown in FIG. 1;
FIG. 5 is a flow chart of a picture generation method according to yet another correction procedure shown in FIG. 1;
FIG. 6 is a block diagram illustrating a structure of a picture-generating device in a correction process according to an exemplary embodiment;
FIG. 7 is a block diagram of a policy determination module according to one embodiment shown in FIG. 6;
fig. 8 is a block diagram of the structure of a picture generation apparatus in another correction process according to fig. 6.
Detailed Description
The following detailed description of the disclosed embodiments will be made in conjunction with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart illustrating a picture generation method in a correction process according to an exemplary embodiment, as shown in fig. 1, applied to an electronic device, the method including:
in step 101, a target correction attribute required by the LED display screen in the current correction process is determined in at least one preset correction attribute.
Wherein the correction attribute comprises at least one of: the method comprises the following steps of screen size correction, display area frame correction, frame gray scale correction, starting position correction of equidistant points in a display area, point distance correction and point gray scale correction.
For example, in the process of correcting the LED display screen, a plurality of correction attributes are involved, and one of the plurality of correction attributes is selected as a target correction attribute, or after selecting and combining a plurality of correction attributes from the plurality of correction attributes, a combination of the selected plurality of correction attributes is used as a target correction attribute.
In the embodiment of the present disclosure, after the target calibration attribute is determined, the light points on the LED display screen may be adjusted through the following steps 102-103, so that a testability picture (a calibration picture required in the calibration process) corresponding to the target calibration attribute is displayed on the LED display screen. It should be noted that the testability picture is formed by regularly arranging the light points on the LED display screen, rather than issuing a signal source image from the PC.
In step 102, a target lamp point and a target adjustment strategy corresponding to the target lamp point are determined on the LED display screen according to the target correction attribute.
For example, after the target correction attribute and the target correction picture corresponding to the target correction attribute are determined, the light points on the LED display screen need to be adjusted, so that the adjusted LED display screen presents the target correction picture through the arrangement of the light points (i.e., the target light points on the LED display screen that need to be adjusted and the target adjustment strategy corresponding to the target light points are determined).
In step 103, the brightness value and/or the color of the target lamp point are adjusted according to the target adjustment strategy, so that a target correction picture required in the current correction process is generated on the LED display screen.
The target correction picture is a regularity test picture consisting of lamp points on the LED display screen.
Illustratively, after the target correction attribute of the LED display screen is determined, the target correction screen corresponding to the target correction attribute is determined. Each correction attribute (or combination of correction attributes) corresponds to a different correction picture, and the brightness value and the color adjustment degree of each lamp point on the LED display screen are different when different target correction pictures are generated. For example, lighting the target lamp point, extinguishing the target lamp point, increasing/decreasing the brightness value of the target lamp point, changing the color displayed by the target lamp point, and the like.
It can be understood that if the target correction attribute relates to screen size correction, all the light points on the LED display screen are target light points, and the brightness value and color of each target light point need to be adjusted according to a target adjustment policy; if the target correction attribute relates to the correction of the size of the display area, the lamp point of the display area on the LED display screen is a target lamp point; if the target correction attribute relates to the correction of the frame of the display area, the lamp points in the frame on the LED display screen are target lamp points; if the target correction attribute relates to frame gray level correction, the lamp points in the frame of the LED display screen are target lamp points, the brightness value and the color of the target lamp points in the frame need to be adjusted according to a target adjustment strategy, and the gray level of the target lamp points in the frame is corrected when the lamp points in the frame display different brightness values; if the target correction attribute relates to the correction of the initial positions of the equally spaced points in the display area, the light points in the equally spaced target area in the display area on the LED display screen are target light points; if the target correction attribute relates to point-to-point distance correction, the light points in the target area with equal distance on the LED display screen are target light points; if the target correction attribute relates to point gray scale correction, all the lamp points in the LED display screen are target lamp points, and the target lamp points need to be adjusted according to a target adjustment strategy, so that when the lamp points in the frame display different brightness values, the gray scale of the target lamp points in the frame is corrected.
Fig. 2 is a flow chart of a policy determination method according to the method shown in fig. 1, and as shown in fig. 2, the step 102 includes:
in step 1021, an objective correction function corresponding to the objective correction attribute is determined.
Specifically, a correction function corresponding to each correction attribute included in the target correction attribute is determined; and after abstract operation is carried out on each determined correction function, the target correction function is obtained.
Illustratively, as shown in step 102 above, each target correction attribute corresponds to a target light point and a target adjustment strategy (a correction requirement required for correction, for example, if the target correction attribute is screen size correction, the corresponding target light point is all light points on the LED display screen, and the target adjustment strategy is to adjust the color and brightness value of the target light point to a target color and a target brightness value). It can be understood that each correction attribute corresponds to a different correction function, when one correction attribute is determined as a target correction attribute in the correction attributes, the correction function corresponding to the correction attribute is the target correction function, and when a combination of multiple correction attributes is selected as the target correction attribute in the correction attributes, the correction function corresponding to each selected correction attribute is subjected to an abstract operation (for example, two functions are added), so that the target correction function is obtained.
For example, when performing the dot pitch correction, since the brightness of the LED light dots that are too close may interfere with other nearby LED light dots, the LED light dots may be lighted at intervals by adjusting the dot pitch, for example, the light dot is lighted by numeral 1, the light dot is not lighted by numeral 0, and a row of light dots on the LED display screen may be represented as: 100, 000, 100, 000, 100....000, 100. In this way, a calibration function can be established based on the location of each lamp, the number to which the lamp is lit or unlit, and the spacing between the lit lamps on the LED display.
Or, when performing the point gray scale correction, because each lamp point relates to different gray scales, and the correction process involves a hierarchical correction, i.e. different correction coefficients need to be used under different luminance values, it is necessary to adjust the testability picture of the lamp point under different luminance values, so that the correction function can be established according to the position of each lamp point, the gray scale value of the lamp point, and the corresponding luminance value of each lamp point under different gray scale values.
It is understood that, if the target correction function needs to combine a plurality of correction functions, the target correction function can be obtained by performing an abstract operation (e.g., addition) on the correction functions involved.
It can be understood that, in general, the target correction frame (i.e. the testability frame) is a pure color display frame, that is, the testability frame displayed by the LED display screen is a white frame (one dot matrix pixel includes three light points of red, green, and blue, and the three light points are respectively located at different positions, corresponding to different position coordinates, and only three light points of red, green, and blue in all pixels need to be fully lit), a red frame (only one light point of the three light points corresponding to each dot matrix pixel is lit red), a green frame (only one light point of the three light points corresponding to each dot matrix pixel is lit green), or a blue frame (only one light point of the three light points corresponding to each dot matrix pixel is lit blue). In this case, each lamp is represented by the numeral 1 when it is lit, by the numeral 0 when it is not lit, and description 1 and 0 are made in the order of red, green, and blue, and when all the lamps included in each dot matrix pixel are lit (white is displayed), they are represented by the numeral 111, and when all the lamps are red, they are represented by the numeral 100. In this way, a correction function can be established according to the position of each lamp point, the color of the lamp point, the number corresponding to the lamp points with different colors which are lighted or not lighted, and the color displayed by the dot matrix pixel corresponding to the lamp point.
In step 1022, a target light point and a target adjustment strategy corresponding to the target light point are determined on the LED display screen according to the target correction function.
Specifically, a computer coordinate system is established by taking a top point at the left upper end of the LED display screen as an original point, taking a straight line which passes through the original point and is parallel to the bottom edge of the LED display screen as an x-axis and taking a straight line which passes through the original point and is parallel to the side edge of the LED display screen as a y-axis; and operating the target function in the computer coordinate system, determining the target lamp point and a target adjustment strategy corresponding to the target lamp point.
For example, it can be understood that the lamp points on each LED display screen may form a computer coordinate system, and the position of each lamp point is represented by x, y coordinates, so that the coordinates of each target lamp point in the computer coordinate system of the LED display screen, which need to be adjusted, and the target brightness value and the target color of each target lamp point, which need to be adjusted, can be quickly determined according to the target correction function. The position of the target lamp point can be locked and the target lamp point can be correspondingly adjusted as long as the target correction function is operated, so that the labor wasted in adjusting the picture corresponding to the video source signal according to different LED screens (different in size, number of the lamp points, arrangement mode of the lamp points and the like) each time is greatly reduced, the generation of the testability picture on the LED display depends on the change of the lamp point per se, and the influence of the outside (the stability of video signal source transmission, the adaptation degree of the picture corresponding to the video signal source and the LED display screen and the like) is avoided.
Fig. 3 is a flow chart of a picture generation method according to fig. 1, as shown in fig. 3, the method comprising:
in step 1031, a target brightness value and/or a target color corresponding to each target light point is determined according to the target adjustment strategy.
In step 1032, the brightness of each target lamp point is adjusted to a target brightness value, and/or the color of each target lamp point is adjusted to a target color, so that a target correction picture required in the current correction process is generated on the LED display screen.
For example, in a general case, a preset value range is set, and after the objective function is run in the computer coordinate system, when the function value is within the preset value range, the corresponding values of x and y are the coordinate values of the target lamp point. The function value corresponding to the target lamp point is a target adjustment strategy, and a target brightness value and/or a target color to which the target lamp point needs to be adjusted can be determined according to the target function value (i.e., the target adjustment strategy). And adjusting the LED display screen according to the target brightness value and/or the target color to generate a corresponding target correction picture.
Fig. 4 is a flowchart of a picture generation method in accordance with another correction process shown in fig. 1, which further includes, as shown in fig. 4:
in step 104, the control parameters sent by the issuing PC end are received.
Wherein the control parameter is used to determine the target correction attribute among preset correction attributes.
Illustratively, the sending card receives a control parameter sent by the sending PC terminal through the USB cable, and analyzes the control parameter through the FPGA chip in the sending card, so as to determine, according to the control parameter, a correction instruction actually sent by the sending PC terminal to correct the LED display screen and a target correction attribute required to be corrected in the current correction process.
In addition, after the target correction attribute is determined, the light points on the LED display screen are controlled through the PPGA chip to produce a corresponding testability picture. The information interaction between the sending card and the LED display screen is carried out through the internet access and the receiving card in the LED box body, namely after the FPGA determines the target correction function corresponding to the target correction attribute, the target correction function is operated, and the position of each target lamp point and the adjustment needed to be made to each target lamp point are determined. The transmitting card transmits the position of each target lamp point and the adjustment required to be made to each target lamp point to the receiving card, and the receiving card controls the corresponding target lamp point.
Fig. 5 is a flowchart of a picture generation method in accordance with still another correction process shown in fig. 1, and as shown in fig. 5, the method further includes:
in step 105, a target correction image generated after the target correction screen is captured by the camera is acquired.
In step 106, a target correction factor corresponding to the LED display screen is determined according to the target correction image.
In step 107, the lamp point on the LED display screen is corrected according to the target correction factor.
Illustratively, a testability picture showing regularity generated by the LED display screen is photographed by a calibration device (usually a camera), and then brightness uniformity calibration is performed by upper computer software to generate corresponding calibration coefficients, and the calibration coefficients are issued to each corresponding LED lamp spot by a sending card and a receiving card to be calibrated.
Fig. 6 is a block diagram illustrating a structure of a picture generation apparatus in a correction process according to an exemplary embodiment, and as shown in fig. 6, the apparatus 600 includes:
the attribute determining module 610 determines a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute;
a strategy determining module 620, connected to the attribute determining module 610, for determining a target lamp point on the LED display screen and a target adjusting strategy corresponding to the target lamp point according to the target correction attribute;
and the picture generation module 630 is connected to the policy determination module 620, and adjusts the brightness value and/or the color of the target lamp point according to the target adjustment policy, so that a target correction picture required in the current correction process is generated on the LED display screen, where the target correction picture is a regularity test picture formed by the lamp points on the LED display screen.
Fig. 7 is a block diagram illustrating a structure of a policy determination module according to fig. 6, and as shown in fig. 7, the policy determination module 620 includes:
a function determination unit 621 that determines a target correction function corresponding to the target correction attribute;
and a policy determining unit 622, connected to the function determining unit 621, for determining a target light point on the LED display screen according to the target correction function, and a target adjustment policy corresponding to the target light point.
Fig. 8 is a block diagram showing the structure of a picture generation apparatus in another correction process shown in fig. 6, and as shown in fig. 8, the apparatus 600 further includes:
an image generating module 640, connected to the image generating module 630, for obtaining a target correction image generated after the target correction image is captured by the camera;
a coefficient determining module 650, connected to the image generating module 640, for determining a target correction coefficient corresponding to the LED display screen according to the target correction image;
and the lamp point correction module 660 is connected with the coefficient determination module 650 and corrects the lamp points on the LED display screen according to the target correction coefficient.
The invention discloses a picture generating method and a device in a correcting process, which are applied to electronic equipment, wherein the method comprises the following steps: determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute; determining a target lamp point and a target adjusting strategy corresponding to the target lamp point on the LED display screen according to the target correction attribute; the brightness value and/or the color of the target lamp point are/is adjusted according to the target adjustment strategy, so that a target correction picture required in the correction process is generated on the LED display screen, the target correction picture is a regular test picture consisting of the lamp points on the LED display screen, the test picture required in the correction process can appear on the LED display screen by controlling the lamp points on the LED display screen when no video signal source exists, video images matched with different LED display screens do not need to be made in advance, the generation of the picture in the correction process is not influenced by the stability of the video signal source, and the correction effect is ensured.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.
Claims (10)
1. A picture generation method in a correction process is applied to an electronic device, and the method comprises the following steps:
determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute, wherein the correction attribute comprises at least one of screen size correction, display area frame correction, frame gray scale correction, initial position correction of equidistant points in a display area, point distance correction and point gray scale correction, each correction attribute corresponds to a different correction function, and the target correction attribute corresponds to a target correction function so as to determine a target lamp point according to the target correction function;
determining a target lamp point on the LED display screen according to the target correction attribute and a target adjustment strategy corresponding to the target lamp point;
and adjusting the brightness value and/or the color of the target lamp points according to the target adjustment strategy, so that a target correction picture required in the current correction process is generated on the LED display screen, wherein the target correction picture is a regularity test picture consisting of the lamp points on the LED display screen.
2. The method for generating a picture in the correction process according to claim 1, wherein the determining a target lamp point on the LED display screen according to the target correction attribute and a target adjustment strategy corresponding to the target lamp point comprises:
determining a target correction function corresponding to the target correction attribute;
and determining a target lamp point on the LED display screen according to the target correction function and a target adjustment strategy corresponding to the target lamp point.
3. The in-process picture generation method according to claim 2, wherein the determining a target correction function corresponding to the target correction attribute comprises:
determining a correction function corresponding to each correction attribute contained in the target correction attribute;
and after abstract operation is carried out on each determined correction function, the target correction function is obtained.
4. The method according to claim 2, wherein the determining a target light point on the LED display screen according to the target correction function and a target adjustment strategy corresponding to the target light point comprise:
establishing a computer coordinate system by taking the vertex at the left upper end of the LED display screen as an original point, taking a straight line which passes through the original point and is parallel to the bottom edge of the LED display screen as an x-axis and taking a straight line which passes through the original point and is parallel to the side edge of the LED display screen as a y-axis;
and operating the target correction function in the computer coordinate system, and determining the target lamp point and a target adjustment strategy corresponding to the target lamp point.
5. The method according to claim 2, wherein the adjusting the brightness value and the color of the target light point according to the target adjustment policy to generate the target correction picture required by the current correction process on the LED display screen comprises:
determining a target brightness value and/or a target color corresponding to each target lamp point according to the target adjustment strategy;
and adjusting the brightness of each target lamp point to be a target brightness value, and/or adjusting the color of each target lamp point to be a target color, so that a target correction picture required in the current correction process is generated on the LED display screen.
6. The in-process picture generation method according to claim 1, characterized in that the method further comprises:
and receiving control parameters sent by a sending PC terminal, wherein the control parameters are used for determining the target correction attributes in preset correction attributes.
7. The in-process picture generation method according to claim 1, characterized by further comprising:
acquiring a target correction image generated after the target correction picture is shot by a camera;
determining a target correction coefficient corresponding to the LED display screen according to the target correction image;
and correcting the lamp points on the LED display screen according to the target correction coefficient.
8. An apparatus for generating a picture in a correction process, applied to an electronic device, the apparatus comprising:
the attribute determining module is used for determining a target correction attribute required by the LED display screen in the current correction process in at least one preset correction attribute, wherein the correction attribute comprises at least one of screen size correction, display area frame correction, frame gray correction, starting position correction of equidistant points in a display area, point distance correction and point gray correction, each correction attribute corresponds to different correction functions, and the target correction attribute corresponds to a target correction function so as to determine a target lamp point according to the target correction function;
the strategy determining module is connected with the attribute determining module, and determines a target lamp point and a target adjusting strategy corresponding to the target lamp point on the LED display screen according to the target correction attribute;
and the picture generation module is connected with the strategy determination module and is used for adjusting the brightness value and/or the color of the target lamp points according to the target adjustment strategy so as to generate a target correction picture required in the current correction process on the LED display screen, wherein the target correction picture is a regularity test picture consisting of the lamp points on the LED display screen.
9. The picture generation apparatus in correction process according to claim 8, wherein said policy determination module includes:
a function determination unit that determines a target correction function corresponding to the target correction attribute;
and the strategy determining unit is connected with the function determining unit, determines a target lamp point on the LED display screen according to the target correction function, and determines a target adjusting strategy corresponding to the target lamp point.
10. The in-process picture generation apparatus according to claim 8, wherein said apparatus further comprises:
the image generation module is connected with the picture generation module and used for acquiring a target correction image generated after the target correction picture is shot by a camera;
the coefficient determining module is connected with the image generating module and determines a target correction coefficient corresponding to the LED display screen according to the target correction image;
and the lamp point correction module is connected with the coefficient determination module and is used for correcting the lamp points on the LED display screen according to the target correction coefficient.
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| CN114299854B (en) * | 2021-12-24 | 2023-05-09 | 杭州海康威视数字技术股份有限公司 | LED display screen adjusting system, method, equipment and readable storage medium |
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