CN112634827B - Single-box correction plane tilt correction method and device, electronic equipment and storage medium - Google Patents
Single-box correction plane tilt correction method and device, electronic equipment and storage medium Download PDFInfo
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
Abstract
The invention provides a single-box correction plane inclination correction method, a single-box correction plane inclination correction device, electronic equipment and a storage medium, wherein the brightness correction is carried out on an LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module; thereby being favorable to guaranteeing the brightness uniformity of different display modules of the LED display screen and avoiding color confusion.
Description
Technical Field
The invention relates to the technical field of LED display screens, in particular to a single-box correction plane inclination correction method and device, electronic equipment and a storage medium.
Background
The LED display screen is generally formed by splicing a plurality of display modules, the display modules are usually box-type as basic units built by the display screen, and each box body is a small brightness plane. Due to the manufacturing process, etc., the optical axis directions of the red, green, and blue display pixels of the display module, which is the basic unit of the display screen, may not coincide with the normal direction of the screen surface of the display module, and the optical axis directions of the three colors may not coincide with each other, so that the luminance facets are actually inclined in different directions. The brightness of different display modules of the spliced LED display screen is inconsistent, and the color is disordered.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the embodiments of the present application is to provide a single-box correction plane tilt correction method, device, electronic device, and storage medium, which are beneficial to ensuring consistent brightness of different display modules of an LED display screen and avoiding color confusion.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present application provides a single-bin plane tilt correction method, including:
A1. performing brightness correction on an LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
A2. acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
A3. calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data;
A4. and multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficient to obtain the final correction coefficients of the red, green and blue pixels of each display module.
In the single-bin correction plane tilt correcting method, step a1 is preceded by:
A0. acquiring a summary table of the brightness of red, green and blue pixels of different display modules under different horizontal angles and the brightness under different vertical angles;
step a2 includes:
and inquiring in the summary table according to the type of each display module to obtain the brightness data of the red, green and blue pixels of each display module.
In the single-bin correction plane inclination correction method, the first luminance data includes luminance data of a plurality of horizontal angles arranged at equal intervals between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles arranged at equal intervals between-90 ° and 90 °, the plurality of vertical angles including 0 °.
In the single-box correction plane inclination correction method, step a3 includes:
respectively carrying out normalization processing on first brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2）
where c is the correction scale factor, c1 is the first correction parameter, and c2 is the second correction parameter.
In a second aspect, an embodiment of the present application provides a single-box correcting plane tilt correcting device, including:
the brightness correction module is used for performing brightness correction on the LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
the first acquisition module is used for acquiring the brightness data of the red pixel, the green pixel and the blue pixel of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
the first calculation module is used for calculating respective correction proportion coefficients of the red pixels, the green pixels and the blue pixels of each display module according to the brightness data;
and the second calculation module is used for multiplying the preliminary correction coefficient of each display module by the correction proportion coefficient of the corresponding red pixel, green pixel and blue pixel respectively to obtain the final correction coefficient of the red pixel, the green pixel and the blue pixel of each display module.
In the single-box correction plane inclination correction apparatus, the first luminance data includes luminance data of a plurality of horizontal angles arranged at equal intervals between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles arranged at equal intervals between-90 ° and 90 °, the plurality of vertical angles including 0 °.
In the single-box plane tilt correction device, when the first calculation module calculates the respective correction scale factors of the red, green and blue pixels of each display module according to the brightness data,
respectively carrying out normalization processing on first brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2）
where c is the correction scale factor, c1 is the first correction parameter, and c2 is the second correction parameter.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor and a memory, where the memory stores a computer program, and the processor is configured to execute the steps of the single-box correction plane tilt correction method by calling the computer program stored in the memory.
In a fourth aspect, the present application provides a storage medium having a computer program stored thereon, wherein the computer program is configured to execute the steps of the single-box correction plane tilt correction method as described when executed by a processor.
Has the advantages that:
according to the single-box correction plane inclination correction method, the single-box correction plane inclination correction device, the electronic equipment and the storage medium, the brightness correction is carried out on the LED display screen, and the respective preliminary correction coefficients of the red, green and blue pixels of each display module of the LED display screen are obtained; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module; thereby being favorable to guaranteeing the brightness uniformity of different display modules of the LED display screen and avoiding color confusion.
Drawings
Fig. 1 is a flowchart of a single-bin correction plane tilt correction method according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a single-box correcting plane inclination correcting device according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, a single-bin plane tilt correction method according to an embodiment of the present application includes:
A1. performing brightness correction on the LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
A2. acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
A3. calculating respective correction proportion coefficients of the red, green and blue pixels of each display module according to the brightness data;
A4. and multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficient to obtain the final correction coefficients of the red, green and blue pixels of each display module.
In step a1, the brightness of the LED display screen is corrected based on the brightness of the LED display screen in the normal direction, the obtained preliminary correction coefficient is a correction coefficient corresponding to the component of the light emitted by the pixels of the display module in the normal direction of the LED display screen, and when the brightness of the pixels of the display module is adjusted, the brightness in the optical axis direction is actually adjusted, so that the preliminary correction coefficient needs to be converted into the correction coefficient in the optical axis direction to ensure that the final brightness in the normal direction of the LED display screen is the target brightness, so that the brightness of different display modules of the LED display screen is consistent (meaning that the brightness in the normal direction of the LED display screen is consistent) and color confusion is avoided. The correction scale coefficient in the method is a conversion coefficient for converting the preliminary correction coefficient into the correction coefficient in the optical axis direction, the final correction coefficient is the correction coefficient in the optical axis direction, and the brightness of the red, green and blue pixels of each display module can be respectively adjusted according to the final correction coefficients of the red, green and blue pixels of each display module, so that the brightness of the pixels of each display module in the normal direction of the LED display screen is consistent, the brightness consistency of different display modules of the LED display screen is ensured, and color confusion is avoided.
The specific method for performing the brightness correction on the LED display screen in step a1 may adopt a correction method in the prior art, which is not described herein again.
In some preferred embodiments, step a1 is preceded by:
A0. acquiring a summary table of the brightness of red, green and blue pixels of different display modules under different horizontal angles and the brightness under different vertical angles;
step a2 includes:
and inquiring in a summary table according to the type of each display module to obtain the brightness data of the red, green and blue pixels of each display module.
The brightness of the red, green and blue pixels of the different kinds of display modules at different horizontal angles and the brightness at different vertical angles can be collected in advance to form the summary table. The specific process of collecting the brightness data of the same color pixel comprises the following steps: arranging a collecting device (such as a camera) in the normal direction of a screen of the display module, keeping the vertical angle at 0 DEG, changing the horizontal angle of the display module according to a plurality of preset values (for example, gradually changing the horizontal angle of the display module from-90 DEG to 90 DEG by taking 5 DEG as a step length), and collecting the brightness data under each horizontal angle by using the collecting device to obtain the brightness data under different horizontal angles; the horizontal angle is kept at 0 deg., and the vertical angle of the display module is changed according to a plurality of preset values (for example, the vertical angle of the display module is changed from-90 deg. to 90 deg. in steps of 5 deg.), and the luminance data at each vertical angle is collected by the collecting device, so that the luminance data at different vertical angles are obtained. The horizontal angle refers to an angle of rotation around a vertical axis when the display module is vertically placed (i.e., when the screen thereof is vertically placed), and the vertical angle refers to an angle of rotation around a horizontal axis when the display module is vertically placed.
In fact, instead of setting the summary table in advance, the luminance data may be collected in real time in step a2, and the collection process may refer to the collection process described above.
Because the summary table contains the brightness data of different types of display modules, when the single-box correction plane inclination correction is carried out every time, the corresponding brightness data can be obtained only by looking up the table, the efficiency is higher, and especially when the LED display screen contains more than one type of display modules, the efficiency is improved more obviously.
In some embodiments, the first luminance data includes luminance data of a plurality of horizontal angles set at equal intervals (e.g., but not limited to, 1 °, 2 °, 5 °, etc.) between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles set at equal intervals (the interval is, for example, but not limited to, 1 °, 2 °, 5 °, etc.) between-90 ° and 90 °, and the plurality of vertical angles includes 0 °.
In some embodiments, step a3 includes:
A301. respectively carrying out normalization processing on first brightness data of red, green and blue pixels of a display module;
A302. respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
A303. respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
A304. respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
A305. the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2） （1）
where c is a correction scale factor, c1 is a first correction parameter (when the correction scale factor of a certain color pixel is calculated, c1 is the first correction parameter of the corresponding color pixel), and c2 is a second correction parameter (when the correction scale factor of a certain color pixel is calculated, c2 is the second correction parameter of the corresponding color pixel).
In step a301, a specific method for performing normalization processing on the first luminance data is as follows: finding a maximum luminance value in the first luminance data, dividing each luminance data in the first luminance data by the maximum luminance value; similarly, in step a303, the specific method for performing normalization processing on the second luminance data is as follows: the maximum luminance value in the second luminance data is found, and each luminance data in the second luminance data is divided by the maximum luminance value.
In fact, the first luminance data and the second luminance data may also be normalized in advance in the summary table, that is, in some embodiments, the luminance data in the summary table is normalized luminance data, so that step a3 includes:
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportionality coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by using the formula (1).
In practical applications, if the inclination angle of the optical axis of the display module is too large, which is a quality defect, the alarm should be given in time, and therefore, in some embodiments, after obtaining the modified scale factor, the method further includes:
judging whether the correction proportion coefficient is larger than a preset threshold value or not;
if yes, an alarm signal is sent out.
So that the staff can find the quality defect condition in time.
In the single-box correction plane inclination correction method, the preliminary correction coefficients of the red, green and blue pixels of each display module of the LED display screen are obtained by performing brightness correction on the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module; thereby being favorable to guaranteeing the brightness uniformity of different display modules of the LED display screen and avoiding color confusion.
Referring to fig. 2, an embodiment of the present application further provides a single-box plane tilt correction apparatus, which includes a luminance correction module 1, a first obtaining module 2, a first calculating module 3, and a second calculating module 4;
the brightness correction module 1 is used for performing brightness correction on the LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
the first obtaining module 2 is configured to obtain brightness data of each of three pixels, namely red, green and blue, of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
the first calculating module 3 is used for calculating respective correction proportion coefficients of the red, green and blue pixels of each display module according to the brightness data;
the second calculating module 4 is configured to multiply the preliminary correction coefficients of each display module by the correction scaling coefficients of the corresponding red, green, and blue pixels, respectively, to obtain final correction coefficients of the red, green, and blue pixels of each display module.
The specific method for the brightness correction module 1 to perform brightness correction on the LED display screen can adopt a correction method in the prior art.
In some preferred embodiments, the single box corrective plane inclination correction apparatus further comprises:
the second acquisition module is used for acquiring the brightness of the red, green and blue pixels of different display modules under different horizontal angles and the brightness summary table under different vertical angles;
so that when the first acquiring module 2 acquires the brightness data of the red, green and blue pixels of each display module,
and inquiring in a summary table according to the type of each display module to obtain the brightness data of the red, green and blue pixels of each display module.
The brightness of the red, green and blue pixels of the different kinds of display modules at different horizontal angles and the brightness at different vertical angles can be collected in advance to form the summary table. The specific process of collecting the brightness data of the same color pixel comprises the following steps: arranging a collecting device (such as a camera) in the normal direction of a screen of the display module, keeping the vertical angle at 0 DEG, changing the horizontal angle of the display module according to a plurality of preset values (for example, gradually changing the horizontal angle of the display module from-90 DEG to 90 DEG by taking 5 DEG as a step length), and collecting the brightness data under each horizontal angle by using the collecting device to obtain the brightness data under different horizontal angles; the horizontal angle is kept at 0 deg., and the vertical angle of the display module is changed according to a plurality of preset values (for example, the vertical angle of the display module is changed from-90 deg. to 90 deg. in steps of 5 deg.), and the luminance data at each vertical angle is collected by the collecting device, so that the luminance data at different vertical angles are obtained. The horizontal angle refers to an angle of rotation around a vertical axis when the display module is vertically placed (i.e., when the screen thereof is vertically placed), and the vertical angle refers to an angle of rotation around a horizontal axis when the display module is vertically placed.
In fact, the summary table may not be preset, and the first obtaining module 2 may obtain the brightness data in real time when obtaining the brightness data of the red, green, and blue pixels of each display module, and the obtaining process may refer to the above-mentioned obtaining process.
In some embodiments, the first luminance data includes luminance data of a plurality of horizontal angles set at equal intervals (e.g., but not limited to, 1 °, 2 °, 5 °, etc.) between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles set at equal intervals (the interval is, for example, but not limited to, 1 °, 2 °, 5 °, etc.) between-90 ° and 90 °, and the plurality of vertical angles includes 0 °.
In some embodiments, when the first calculating module 3 calculates the respective modified scaling factors of the red, green and blue pixels of each display module according to the luminance data,
respectively carrying out normalization processing on first brightness data of red, green and blue pixels of a display module;
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2）
where c is a correction scale factor, c1 is a first correction parameter (when the correction scale factor of a certain color pixel is calculated, c1 is the first correction parameter of the corresponding color pixel), and c2 is a second correction parameter (when the correction scale factor of a certain color pixel is calculated, c2 is the second correction parameter of the corresponding color pixel).
The specific method for performing normalization processing on the first brightness data comprises the following steps: finding a maximum luminance value in the first luminance data, dividing each luminance data in the first luminance data by the maximum luminance value; similarly, the specific method for performing normalization processing on the second luminance data is as follows: the maximum luminance value in the second luminance data is found, and each luminance data in the second luminance data is divided by the maximum luminance value.
In fact, the first luminance data and the second luminance data may be normalized in advance in the summary table, that is, in some embodiments, the luminance data in the summary table is normalized luminance data, so that when the first calculating module 3 calculates the respective correction scale coefficients of the three pixels of red, green and blue of each display module according to the luminance data,
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportionality coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by using the formula (1).
In practical applications, if the inclination angle of the optical axis of the display module is too large, which is a quality defect, the display module should give an alarm in time, and therefore, in some embodiments, the single-box correcting plane inclination correcting device further includes:
the judging module is used for judging whether the correction proportion coefficient is larger than a preset threshold value or not;
and the alarm module is used for sending an alarm signal when the correction proportion coefficient is larger than a preset threshold value.
So that the staff can find the quality defect condition in time.
In view of the above, the single-box correction plane inclination correction device obtains the preliminary correction coefficients of the red, green, and blue pixels of each display module of the LED display screen by performing brightness correction on the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module; thereby being favorable to guaranteeing the brightness uniformity of different display modules of the LED display screen and avoiding color confusion.
Referring to fig. 3, an electronic device 100 according to an embodiment of the present application further includes a processor 101 and a memory 102, where the memory 102 stores a computer program, and the processor 101 is configured to execute the steps of the single-box correction plane tilt correcting method by calling the computer program stored in the memory 102.
The processor 101 is electrically connected to the memory 102. The processor 101 is a control center of the electronic device 100, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or calling a computer program stored in the memory 102 and calling data stored in the memory 102, thereby performing overall monitoring of the electronic device.
The memory 102 may be used to store computer programs and data. The memory 102 stores computer programs containing instructions executable in the processor. The computer program may constitute various functional modules. The processor 101 executes various functional applications and data processing by calling a computer program stored in the memory 102.
In this embodiment, the processor 101 in the electronic device 100 loads instructions corresponding to one or more processes of the computer program into the memory 102, and the processor 101 runs the computer program stored in the memory 102 according to the following steps, so as to implement various functions: performing brightness correction on an LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; and multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficient to obtain the final correction coefficients of the red, green and blue pixels of each display module.
In the above, the electronic device obtains the respective preliminary correction coefficients of the red, green and blue pixels of each display module of the LED display screen by performing brightness correction on the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module; thereby being favorable to guaranteeing the brightness uniformity of different display modules of the LED display screen and avoiding color confusion.
An embodiment of the present application further provides a storage medium, on which a computer program is stored, and the computer program runs the steps of the single-box correction plane tilt correction method as described above when being executed by a processor, so as to implement the following functions: performing brightness correction on an LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen; acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles; calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data; and multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficient to obtain the final correction coefficients of the red, green and blue pixels of each display module.
The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk. .
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, which are substantially the same as the present invention.
Claims (5)
1. A single bin correction plane tilt correction method, comprising:
A1. performing brightness correction on an LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
A2. acquiring brightness data of red, green and blue pixels of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
A3. calculating respective correction proportion coefficients of the red pixel, the green pixel and the blue pixel of each display module according to the brightness data;
A4. multiplying the preliminary correction coefficients of the red, green and blue pixels of each display module by the corresponding correction proportion coefficients respectively to obtain final correction coefficients of the red, green and blue pixels of each display module;
the first luminance data includes luminance data of a plurality of horizontal angles arranged at equal intervals between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles arranged at equal intervals between-90 ° and 90 °, the plurality of vertical angles including 0 °;
step a3 includes:
respectively carrying out normalization processing on first brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2）
where c is the correction scale factor, c1 is the first correction parameter, and c2 is the second correction parameter.
2. The single-bin corrected planar tilt correction method of claim 1, further comprising, before step a 1:
A0. acquiring a summary table of the brightness of red, green and blue pixels of different display modules under different horizontal angles and the brightness under different vertical angles;
step a2 includes:
and inquiring in the summary table according to the type of each display module to obtain the brightness data of the red, green and blue pixels of each display module.
3. A single box correcting planar tilt correcting apparatus comprising:
the brightness correction module is used for performing brightness correction on the LED display screen to obtain respective preliminary correction coefficients of red, green and blue pixels of each display module of the LED display screen;
the first acquisition module is used for acquiring the brightness data of the red pixel, the green pixel and the blue pixel of each display module; the luminance data includes first luminance data corresponding to different horizontal angles and second luminance data corresponding to different vertical angles;
the first calculation module is used for calculating respective correction proportion coefficients of the red pixels, the green pixels and the blue pixels of each display module according to the brightness data;
the second calculation module is used for multiplying the preliminary correction coefficient of each display module by the correction proportion coefficient of the corresponding red pixel, green pixel and blue pixel respectively to obtain the final correction coefficient of the red pixel, the green pixel and the blue pixel of each display module;
the first luminance data includes luminance data of a plurality of horizontal angles arranged at equal intervals between-90 ° and 90 °, the plurality of horizontal angles including 0 °; the second luminance data includes luminance data of a plurality of vertical angles arranged at equal intervals between-90 ° and 90 °, the plurality of vertical angles including 0 °;
when the first calculating module calculates the respective correction proportion coefficients of the red, green and blue pixels of each display module according to the brightness data,
respectively carrying out normalization processing on first brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree horizontal angles of the red pixel, the green pixel and the blue pixel as corresponding first correction parameters;
respectively carrying out normalization processing on second brightness data of the red pixel, the green pixel and the blue pixel of the display module;
respectively taking the normalized brightness values of the respective 0-degree vertical angles of the red pixel, the green pixel and the blue pixel as corresponding second correction parameters;
the correction proportion coefficients of the red pixel, the green pixel and the blue pixel are respectively calculated by the following formulas:
c=1/（c1*c2）
where c is the correction scale factor, c1 is the first correction parameter, and c2 is the second correction parameter.
4. An electronic device, characterized in that it comprises a processor and a memory, in which a computer program is stored, said processor being adapted to carry out the steps of the single-bin correction plane tilt correction method according to any one of claims 1-2, by invoking said computer program stored in said memory.
5. A storage medium having stored thereon a computer program, characterized in that the computer program, when being executed by a processor, executes the steps of the single-bin correction plane tilt correction method according to any one of claims 1-2.
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