CN113870727A - Display adjusting method and device of spliced screen, computer equipment and storage medium - Google Patents
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- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- 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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Abstract
The application discloses a display adjusting method and device of a spliced screen, computer equipment and a storage medium, which belong to the technical field of display, wherein the adjusting method comprises the following steps: receiving a test image; analyzing the display mode of the spliced screen, and segmenting the test image according to the display mode to obtain subarea image data, wherein the subarea image data correspond to a plurality of display screens of the spliced screen one by one; respectively inputting the partitioned image data into corresponding display screens for display; respectively acquiring display parameters for displaying the partitioned image data by a plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing compensation values of the display parameters between the target objects and the reference objects; and adjusting the display parameters of the target object according to the compensation value. In this application, the signal source is with the mode of HDMI signal with the image transmission to the display screen, and packaging structure is simple, and design manufacturing cost is lower, simultaneously, can improve the display quality of display screen.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display adjustment method and apparatus for a tiled display, a computer device, and a storage medium.
Background
With the rapid development of scientific technology, various industries are dedicated to information-based construction, and the requirement for high-quality visualization of information is rapidly increased, so that a large-screen tiled display screen is produced, and the tiled display screen can display a whole image by dividing the whole image content required to be displayed by the tiled display screen into a plurality of parts and respectively allocating the parts to each display screen and displaying the allocated content by each display screen.
The existing LED spliced display screen is formed by splicing a plurality of LED display units, each LED display unit comprises a plurality of LED lamps, and each LED lamp consists of R, G primary color LED particles and B primary color LED particles. It can be understood that, in the production of LED particles, the performance of LED particles is affected by the difference of process parameters or the deviation of particle size cutting. After the whole splicing, the display areas corresponding to the display units on the picture have color difference, so that the display effect is uneven, and the display quality is reduced.
Disclosure of Invention
In order to improve the display quality, the application provides a display adjusting method and device of a spliced screen, computer equipment and a storage medium.
In a first aspect, the present application provides a display adjustment method for a tiled screen, which adopts the following technical scheme:
a display adjusting method of a spliced screen comprises the following steps:
receiving a test image;
analyzing the display mode of the spliced screen, and segmenting the test image according to the display mode to obtain subarea image data, wherein the subarea image data correspond to a plurality of display screens of the spliced screen one by one;
respectively inputting the partitioned image data into corresponding display screens for display;
respectively acquiring display parameters for displaying the partitioned image data by a plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing compensation values of the display parameters between the target objects and the reference objects;
and adjusting the display parameters of the target object according to the compensation value.
By adopting the technical scheme, the test image is divided into the plurality of subarea image data according to the display mode of the spliced screen, and the plurality of display screens respectively display the subarea image data one by one so as to form a complete display image. And then, the display parameters of the display screens are respectively acquired, one of the display parameters is taken as a reference parameter, and the display parameters of other display screens are adjusted according to the reference parameter, so that the display parameters among the display screens tend to be the same, the chromatic aberration can be effectively reduced, and the display quality is improved.
Preferably, the display parameters include luminance and chrominance.
By adopting the technical scheme, the relevance of the brightness, the chroma and the chromatic aberration is large, and the chromatic aberration can be effectively reduced by adjusting the brightness and the chroma; only two parameters of brightness and chroma are calculated, and the calculation amount can be reduced.
Preferably, the acquiring the display parameters of the plurality of display screens for displaying the divisional image data, respectively, and taking one of the display screens as a reference object and the remaining display screens as a target object, and analyzing the compensation value of the display parameters between the target object and the reference object, includes:
acquiring target brightness and target chroma of a reference object;
acquiring pixels of a sampling area of a target object, and calculating the average brightness and the average chroma of the sampling area through the pixels;
a luminance difference value between the average luminance and the target luminance and a chrominance difference value between the average chrominance and the target chrominance are calculated to obtain a compensation value.
By adopting the technical scheme, the pixels in the sampling area are collected, the average brightness and the average chroma of the sampling area are calculated through the pixels, the brightness and the chroma of the target object can be obtained, and then the compensation value is obtained through calculation; by setting the sampling area, the amount of calculation can be reduced.
Preferably, the adjusting the display parameter of the target object according to the compensation value includes:
judging whether the absolute value of the brightness difference value is larger than a brightness threshold value, if so, updating the brightness of the target object according to the brightness difference value;
and comparing the updated brightness with the target brightness to obtain a new brightness difference value, and repeating the steps until the absolute value of the brightness difference value is smaller than the brightness threshold value.
By adopting the technical scheme, the brightness difference value is compared with the brightness threshold value, and the brightness is judged to be required to be adjusted. The brightness is gradually adjusted to be close to the target brightness, so that the adjustment is more accurate.
Preferably, the adjusting the display parameter of the target object according to the compensation value further includes:
judging whether the absolute value of the chromaticity difference value is larger than a chromaticity threshold value, if so, updating the chromaticity of the target object according to the chromaticity difference value;
and comparing the updated chromaticity with the target chromaticity to obtain a new chromaticity difference value, and repeating the steps until the absolute value of the chromaticity difference value is smaller than the chromaticity threshold value.
By adopting the technical scheme, the chrominance difference value is compared with the chrominance threshold value, and the chrominance is judged to be required to be adjusted. The chromaticity is gradually close to the target chromaticity by gradually adjusting the chromaticity, so that the adjustment is more accurate.
Preferably, the inputting the partitioned image data into the corresponding display screens respectively for displaying includes:
time stamping the subarea image data;
and respectively inputting the subarea image data with the time stamp into corresponding display screens, and displaying the subarea image data by the time stamp of the display screens.
By adopting the technical scheme, the time stamp is marked on the subarea image data, and then the subarea image data is displayed according to the time stamp, so that the display synchronization rate can be improved, and the picture tearing condition caused by asynchronism is reduced.
In a second aspect, the present application provides a display adjusting device of a tiled screen, which adopts the following technical scheme:
a display adjustment apparatus for a tiled display, comprising:
a receiving module: for receiving a test image;
an analysis and segmentation module: the system comprises a splicing screen, a test image acquisition module, a display module and a display module, wherein the display module is used for analyzing the display mode of the splicing screen and segmenting the test image according to the display mode to obtain subarea image data, and the subarea image data correspond to a plurality of display screens of the splicing screen one by one;
an input analysis module: the device is used for inputting the partitioned image data into corresponding display screens respectively for display;
respectively acquiring display parameters for displaying the partitioned image data by a plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing compensation values of the display parameters between the target objects and the reference objects;
a parameter adjusting module: and the display parameter of the target object is adjusted according to the compensation value.
By adopting the technical scheme, the test image is divided into the plurality of subarea image data according to the display mode of the spliced screen, and the plurality of display screens respectively display the subarea image data one by one so as to form a complete display image. And then, the display parameters of the display screens are respectively acquired, one of the display parameters is taken as a reference parameter, and the display parameters of other display screens are adjusted according to the reference parameter, so that the display parameters among the display screens tend to be the same, the chromatic aberration can be effectively reduced, and the display quality is improved.
In a third aspect, the present application provides a computer device, which adopts the following technical solution:
a computer device comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and executed to perform any of the methods described above.
In a fourth aspect, the present application provides a computer-readable storage medium, which adopts the following technical solutions:
a computer readable storage medium storing a computer program that can be loaded by a processor and executed to perform any of the methods described above.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the display parameters of the display screens are obtained, one of the display parameters is used as a reference parameter, and the display parameters of other display screens are adjusted according to the reference parameter, so that the display parameters among the display screens tend to be the same, the chromatic aberration can be effectively reduced, and the display quality is improved;
2. the partitioned image data are displayed according to the time stamps, so that the display synchronization rate can be improved, and the picture tearing condition caused by asynchronism is reduced.
Drawings
FIG. 1 is a flowchart illustrating a method for adjusting display of a tiled display screen according to an embodiment of the present application;
fig. 2 is a flowchart of a display adjustment method for a tiled display screen according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-2 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses a display adjusting method of a spliced screen, and with reference to fig. 1, the display adjusting method comprises the following steps:
s1: a test image is received.
Specifically, the test image is a single-color image, for example, the test image may be a pure white picture or a pure red picture. The signal source outputs the test image to a display at the rear end, and the display receives and displays the test image.
S2: and analyzing the display mode of the spliced screen, and segmenting the test image according to the display mode to obtain subarea image data, wherein the subarea image data are in one-to-one correspondence with the display screens of the spliced screen.
Specifically, the signal source has an HDMI output function, and the display screen has HDMI interfaces, for example, the number of the display screens may be 4, the signal source is connected to the signal splitter through an HDMI line, and the signal splitter is connected to the display screen through an HDMI line.
The signal source transmits a test image to a signal divider at the front end in an HDMI signal mode, the signal divider copies and transmits an input signal to 4 image processing chips at the rear end, the image processing chips output a rear end signal and convert the rear end signal into an HDMI signal after performing corresponding image division processing, and then the converted HDMI signal is transmitted to the display. The image segmentation process belongs to the existing mature technology, and is not described herein again.
S3: and respectively inputting the partitioned image data into corresponding display screens for display.
For example, the display screens include an a1 display screen, an a2 display screen, an A3 display screen and an a4 display screen, and the test image is divided into four divided images, namely, a portion image a1, a portion image a2, a portion image A3 and a portion image a4, wherein the portion image a1 is displayed on the a1 display screen; the partition image a2 is displayed in the a2 display screen; the partition image A3 is displayed in the A3 display screen; the partition image a4 is displayed in the a4 display screen.
S4: and respectively acquiring display parameters for displaying the partitioned image data by the plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing the compensation value of the display parameters between the target objects and the reference objects.
For example, the display screens include an a1 display screen, an a2 display screen, an A3 display screen and an a4 display screen, the a1 display screen is used as a reference object, the a2 display screen, the A3 display screen and the a4 display screen are used as target objects, and the compensation values of the display parameters between the a2 display screen, the A3 display screen, the a4 display screen and the a1 display screen are analyzed and adjusted.
S5: and adjusting the display parameters of the target object according to the compensation value.
For example, the display screens include an a1 display screen, an a2 display screen, an A3 display screen and an a4 display screen, the a1 display screen is used as a reference object, the a2 display screen, the A3 display screen and the a4 display screen are used as target objects, the display parameters of the a1 display screen are unchanged, and the display parameters of the a2 display screen, the A3 display screen and the a4 display screen are adjusted according to the display parameters of the a1 display screen.
Referring to fig. 2, alternatively, in step S3, inputting the image data of the subareas into the corresponding display screens for display respectively includes:
s31: the partitioned image data is time stamped.
S32: and respectively inputting the subarea image data with the time stamp into corresponding display screens, and displaying the subarea image data by the time stamp of the display screens.
For example, the partitioned image data is time stamped by an encoder, which is invariant during encoding, transmission, decoding, and blending.
Optionally, in step S4, that is, the obtaining of the display parameters of the plurality of display screens for displaying the divisional image data, respectively, and taking one of the display screens as a reference object and the remaining display screens as a target object, and analyzing the compensation value of the display parameter between the target object and the reference object includes the following sub-steps:
s41: a target luminance and a target chromaticity of the reference object are obtained.
S42: and acquiring pixels of a sampling area of the target object, and calculating the average brightness and the average chroma of the sampling area through the pixels.
S43: a luminance difference value between the average luminance and the target luminance and a chrominance difference value between the average chrominance and the target chrominance are calculated to obtain a compensation value.
Specifically, the display parameters include luminance and chrominance. For example, a color analyzer collects a plurality of pixel points of the reference object, and calculates an average value of luminance and chromaticity of the plurality of pixel points to obtain target luminance and target chromaticity. The method comprises the steps of collecting pixels in a target object sampling area through a color analyzer, wherein the sampling area is provided with M multiplied by N pixels, and carrying out average value calculation on the brightness and the chroma of the M multiplied by N pixels to obtain average brightness and average chroma.
Optionally, in step S5, that is, adjusting the display parameter of the target object according to the compensation value, the method includes the following sub-steps:
s51: and judging whether the absolute value of the brightness difference value is larger than a brightness threshold value, if so, updating the brightness of the target object according to the brightness difference value.
S52: and comparing the updated brightness with the target brightness to obtain a new brightness difference value, and repeating the steps until the absolute value of the brightness difference value is smaller than the brightness threshold value.
S53: and judging whether the absolute value of the chromaticity difference value is larger than a chromaticity threshold value, if so, updating the chromaticity of the target object according to the chromaticity difference value.
S54: and comparing the updated chromaticity with the target chromaticity to obtain a new chromaticity difference value, and repeating the steps until the absolute value of the chromaticity difference value is smaller than the chromaticity threshold value.
Specifically, the brightness difference value and the chromaticity difference value are compared with a threshold value to determine whether the brightness and the chromaticity need to be adjusted. For example, the luminance threshold is 0.3cd/m2, the luminance of the reference target is 30cd/m2, wherein the luminance of the target object 1 is 29cd/m2, the luminance of the target object 2 is 30.2cd/m2, the luminance difference between the target object 1 and the reference target is 1cd/m2, and the luminance of the target object 1 needs to be adjusted; the difference between the luminance of the target object 2 and the luminance of the reference object is 0.2cd/m2, and in this case, the luminance of the target object 2 is considered to be the same as the luminance of the reference object, and it is not necessary to adjust the luminance of the target object 2.
When the brightness of the target object 1 is adjusted, the brightness of the target object 1 is gradually updated, for example, the brightness of each update is 0.2cd/m2, then after the first update, the brightness of the target object 1 is 29.2cd/m2, at this time, the brightness difference value between the target object 1 and the reference object is 0.8cd/m2, and the brightness of the target object 1 still needs to be adjusted until the brightness of the target object 1 is adjusted to 29.8cd/m2, at this time, the brightness difference value between the target object 1 and the reference object is 0.2cd/m2, and 0.2cd/m2 is less than 0.3cd/m 2.
The embodiment of the application also discloses a display adjusting device of concatenation screen, includes:
a receiving module: for receiving a test image.
An analysis and segmentation module: and the method is used for analyzing the display mode of the spliced screen and segmenting the test image according to the display mode to obtain subarea image data, wherein the subarea image data are in one-to-one correspondence with the display screens of the spliced screen.
An input analysis module: and the image processing device is used for inputting the partitioned image data into corresponding display screens respectively for display.
And respectively acquiring display parameters for displaying the partitioned image data by the plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing the compensation value of the display parameters between the target objects and the reference objects.
A parameter adjusting module: and the display parameter of the target object is adjusted according to the compensation value.
For the specific definition of the display adjusting device of a tiled screen, refer to the above definition of the display adjusting method of a tiled screen, and are not described herein again. All or part of the modules in the display adjusting device of the spliced screen can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The embodiment of the application also discloses computer equipment which comprises a memory and a processor, wherein the memory is stored with a computer program which can be loaded by the processor and can execute the display adjusting method of the spliced screen.
The embodiment of the application also discloses a computer readable storage medium, which stores a computer program capable of being loaded by a processor and executing the display adjusting method of the spliced screen.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, the computer program can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous link (Synchlink), DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
A processor in the present application may include one or more processing cores. The processor executes or executes the instructions, programs, code sets, or instruction sets stored in the memory, calls data stored in the memory, performs various functions of the present application, and processes the data. The Processor may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor. It is understood that the electronic devices for implementing the above processor functions may be other devices, and the embodiments of the present application are not limited in particular.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above.
Claims (9)
1. A display adjusting method of a spliced screen is characterized by comprising the following steps:
receiving a test image;
analyzing the display mode of the spliced screen, and segmenting the test image according to the display mode to obtain subarea image data, wherein the subarea image data correspond to a plurality of display screens of the spliced screen one by one;
respectively inputting the partitioned image data into corresponding display screens for display;
respectively acquiring display parameters for displaying the partitioned image data by a plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing compensation values of the display parameters between the target objects and the reference objects;
and adjusting the display parameters of the target object according to the compensation value.
2. The method for adjusting the display of a tiled screen according to claim 1, wherein the display parameters include luminance and chrominance.
3. The method for adjusting display of a tiled screen according to claim 2, wherein the obtaining display parameters of the plurality of display screens for displaying the tile image data, respectively, and taking one of the display screens as a reference object and the remaining display screens as target objects, and analyzing the compensation value of the display parameters between the target object and the reference object, comprises:
acquiring target brightness and target chroma of a reference object;
acquiring pixels of a sampling area of a target object, and calculating the average brightness and the average chroma of the sampling area through the pixels;
a luminance difference value between the average luminance and the target luminance and a chrominance difference value between the average chrominance and the target chrominance are calculated to obtain a compensation value.
4. The display adjustment method of the tiled screen according to claim 3, wherein the adjusting the display parameters of the target object according to the compensation value comprises:
judging whether the absolute value of the brightness difference value is larger than a brightness threshold value, if so, updating the brightness of the target object according to the brightness difference value;
and comparing the updated brightness with the target brightness to obtain a new brightness difference value, and repeating the steps until the absolute value of the brightness difference value is smaller than the brightness threshold value.
5. The method for adjusting display of a tiled screen according to claim 4, wherein the adjusting the display parameters of the target object according to the compensation value further comprises:
judging whether the absolute value of the chromaticity difference value is larger than a chromaticity threshold value, if so, updating the chromaticity of the target object according to the chromaticity difference value;
and comparing the updated chromaticity with the target chromaticity to obtain a new chromaticity difference value, and repeating the steps until the absolute value of the chromaticity difference value is smaller than the chromaticity threshold value.
6. The display adjustment method of the tiled display screen according to claim 1, wherein the inputting the subarea image data into the corresponding display screens for display respectively comprises:
time stamping the subarea image data;
and respectively inputting the subarea image data with the time stamp into corresponding display screens, and displaying the subarea image data by the time stamp of the display screens.
7. A display adjusting device of a tiled screen, comprising:
a receiving module: for receiving a test image;
an analysis and segmentation module: the system comprises a splicing screen, a test image acquisition module, a display module and a display module, wherein the display module is used for analyzing the display mode of the splicing screen and segmenting the test image according to the display mode to obtain subarea image data, and the subarea image data correspond to a plurality of display screens of the splicing screen one by one;
an input analysis module: the device is used for inputting the partitioned image data into corresponding display screens respectively for display;
respectively acquiring display parameters for displaying the partitioned image data by a plurality of display screens, taking one display screen as a reference object, taking the rest display screens as target objects, and analyzing compensation values of the display parameters between the target objects and the reference objects;
a parameter adjusting module: and the display parameter of the target object is adjusted according to the compensation value.
8. A computer device comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and that executes the method according to any one of claims 1 to 6.
9. A computer-readable storage medium, in which a computer program is stored which can be loaded by a processor and which executes the method of any one of claims 1 to 6.
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| CN115019723A (en) * | 2022-06-29 | 2022-09-06 | 京东方科技集团股份有限公司 | Screen display method, screen display device, electronic apparatus, program, and medium |
| CN115188317A (en) * | 2022-06-14 | 2022-10-14 | 深圳市艾比森光电股份有限公司 | Local debugging method and device for LED display screen and storage medium |
| CN115390777A (en) * | 2022-08-22 | 2022-11-25 | 杭州海康慧影科技有限公司 | Method and device for adjusting display picture of endoscope and storage medium |
| CN116206576A (en) * | 2023-03-20 | 2023-06-02 | 百润生科技(深圳)有限公司 | Light leakage compensation method, device, equipment and storage medium for spliced display system |
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| CN115188317A (en) * | 2022-06-14 | 2022-10-14 | 深圳市艾比森光电股份有限公司 | Local debugging method and device for LED display screen and storage medium |
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