CN115331614A - Brightness debugging method and system for LED display screen - Google Patents
Brightness debugging method and system for LED display screen Download PDFInfo
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- 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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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
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Abstract
The invention provides a brightness debugging method and a system of an LED display screen, which are applied to the technical field of brightness adjustment of the display screen, and the method comprises the following steps: and detecting a preset display area through a photosensitive sensor to generate a forward illumination set and a reverse illumination set. And carrying out cluster analysis on the forward illuminance set to generate a first-level illuminance cluster result. And performing clustering analysis according to the reverse illuminance set traversal primary illuminance clustering result to generate a secondary illuminance clustering result. And optimizing the display brightness of the secondary illuminance clustering result to generate a display brightness analog quantity. And splitting the preset display area to generate a display area splitting result and obtain the initial display brightness. And adjusting the initial display brightness quantity according to the display brightness analog quantity. The technical problem that in the prior art, the LED display screen is low in brightness adjustment accuracy, brightness adjustment cannot be optimized according to human eyes, and the watching effect of a user is poor is solved.
Description
Technical Field
The invention relates to the technical field of brightness adjustment of display screens, in particular to a brightness debugging method and system of an LED display screen.
Background
The LED display screen is an electronic display screen consisting of LED lattices, and the image display of the screen is realized by controlling the on and off of LED lamps. The LED with the smaller screen is mostly used indoors, and the display influence on the screen is smaller due to the fact that indoor environment light changes are smaller. And the LED with a larger screen is mostly used outdoors, and because outdoor ambient light is more complex, in order to ensure the viewing effect of the large-screen LED display screen, the display brightness of the LED needs to be accurately adjusted according to the working ambient light. However, in the prior art, the brightness of the LED screen is adjusted by time sequence to control and adjust the brightness, the adjustment precision is not high, and the brightness adjustment cannot be optimized according to human senses, which causes a problem of poor viewing effect for users.
Therefore, the technical problem that the LED display screen in the prior art is low in brightness adjustment accuracy, and the brightness adjustment cannot be optimized according to human senses, so that the watching effect of a user is poor is caused.
Disclosure of Invention
The application provides a brightness debugging method and system of an LED display screen, which are used for solving the technical problems that in the prior art, the brightness adjusting accuracy of the LED display screen is low, the brightness adjustment cannot be optimized according to human eyes, and the watching effect of a user is poor.
In view of the foregoing problems, the present application provides a brightness debugging method and system for an LED display screen.
In a first aspect of the present application, a brightness debugging method for an LED display screen is provided, where the method employs a brightness debugging system for an LED display screen, the system is communicatively connected to a photosensitive sensor and a spectral color brightness meter, and the method includes: detecting a preset display area of the LED display screen through a photosensitive sensor to generate ambient illuminance, wherein the ambient illuminance comprises a forward illuminance set and a reverse illuminance set; performing cluster analysis according to the forward illuminance set to generate a primary illuminance cluster result; performing cluster analysis according to the reverse illuminance set traversing the primary illuminance clustering result to generate a secondary illuminance clustering result; traversing the secondary illuminance clustering result to optimize the display brightness and generate a display brightness analog quantity; splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result; traversing the splitting result of the display area, and detecting through a spectral color brightness meter to generate an initial amount of display brightness; and adjusting the initial display brightness quantity according to the display brightness analog quantity.
In a second aspect of the present application, a brightness adjustment system for an LED display screen is provided, the system is in communication connection with a photosensitive sensor and a spectral color luminance meter, and the system includes: the system comprises an ambient illuminance acquisition module, a display control module and a display control module, wherein the ambient illuminance acquisition module is used for detecting a preset display area of an LED display screen through a photosensitive sensor to generate ambient illuminance, and the ambient illuminance comprises a forward illuminance set and a reverse illuminance set; the primary illuminance clustering result acquisition module is used for carrying out clustering analysis according to the forward illuminance set to generate a primary illuminance clustering result; the secondary illuminance clustering result acquisition module is used for traversing the primary illuminance clustering result according to the reverse illuminance set to perform clustering analysis so as to generate a secondary illuminance clustering result; the display brightness analog quantity generation module is used for traversing the secondary illuminance clustering result to optimize the display brightness and generate a display brightness analog quantity; the preset display area splitting module is used for splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result; the display brightness initial quantity acquisition module is used for traversing the split result of the display area, detecting the split result through a spectrum color brightness meter and generating display brightness initial quantity; and the brightness adjusting module is used for adjusting the initial display brightness quantity according to the display brightness analog quantity.
One or more technical solutions provided in the present application have at least the following technical effects or advantages:
according to the method provided by the embodiment of the application, the preset display area is detected through the photosensitive sensor, and the forward illuminance set and the reverse illuminance set are generated. And carrying out cluster analysis on the forward illuminance set to generate a first-level illuminance cluster result. And performing clustering analysis according to the reverse illuminance set traversal primary illuminance clustering result to generate a secondary illuminance clustering result. And optimizing the display brightness of the secondary illuminance clustering result to generate a display brightness analog quantity. And splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result and obtain the initial display brightness. And traversing the splitting result of the display area, and detecting by a spectral color brightness meter to generate the initial amount of display brightness. And adjusting the initial display brightness quantity according to the display brightness analog quantity to finish the adjustment of the LED display screen. The initial brightness of the display screen is accurately obtained by splitting the display area, and the initial brightness of the display screen is further adjusted by the display brightness analog quantity, so that the accurate adjustment of the brightness of the LED display screen is realized, and the watching effect of a user is improved. The technical problem that in the prior art, the LED display screen is low in brightness adjustment accuracy, brightness adjustment cannot be optimized according to human eyes, and the watching effect of a user is poor is solved.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
Fig. 1 is a schematic flowchart of a brightness debugging method for an LED display screen according to the present application;
fig. 2 is a schematic flow chart illustrating a process of obtaining a first-level illuminance clustering result in the brightness debugging method for the LED display screen according to the present application;
fig. 3 is a schematic flow chart illustrating a process of acquiring a display brightness analog quantity in a brightness debugging method for an LED display screen according to the present application;
fig. 4 is a schematic structural diagram of a brightness adjustment system of an LED display screen according to the present application.
Description of the reference numerals: the system comprises an ambient illuminance acquisition module 11, a primary illuminance clustering result acquisition module 12, a secondary illuminance clustering result acquisition module 13, a display brightness analog quantity generation module 14, a preset display area splitting module 15, a display brightness initial quantity acquisition module 16 and a brightness adjustment module 17.
Detailed Description
The application provides a brightness debugging method and system of an LED display screen, which are used for solving the technical problems that in the prior art, the brightness adjusting accuracy of the LED display screen is low, the brightness adjustment cannot be optimized according to human eyes, and the watching effect of a user is poor.
The technical solution in the present application will be described clearly and completely with reference to the accompanying drawings. The described embodiments are only some of the implementations possible in the present application, and not all of the implementations possible in the present application.
Example one
As shown in fig. 1, the present application provides a brightness debugging method for an LED display screen, the method employs a brightness debugging system for an LED display screen, the system is communicatively connected to a photosensitive sensor and a spectral color brightness meter, and the method includes:
step 100: detecting a preset display area of the LED display screen through a photosensitive sensor to generate ambient illuminance, wherein the ambient illuminance comprises a forward illuminance set and a reverse illuminance set;
specifically, the LED display screen is an electronic display screen composed of LED lattices, and the image display of the screen is realized by controlling the on and off of the LED lamps. The LED with the smaller screen is mostly used indoors, and the display influence on the screen is smaller due to the fact that indoor environment light changes are smaller. And the LED with a larger screen is mostly used outdoors, and because outdoor ambient light is more complicated, the display brightness of the LED needs to be accurately adjusted in order to ensure the display effect of the display. The preset display area of the LED display screen is detected through the photosensitive sensor, the preset display area is detected, the ambient illuminance of the display area is obtained, and the ambient illuminance is generated. And acquiring a forward illuminance set and a reverse illuminance set, wherein the ambient illuminance is the illumination intensity of the area, the forward illuminance is the illumination intensity in front of the LED screen, and the reverse illuminance is the illumination intensity behind the LED screen.
Step 200: performing cluster analysis according to the forward illuminance set to generate a first-level illuminance cluster result;
step 300: performing cluster analysis according to the reverse illuminance set traversing the primary illuminance clustering result to generate a secondary illuminance clustering result;
specifically, clustering analysis is performed according to the forward illuminance set, and mean value replacement is performed on the elements with smaller element difference values in the forward illuminance set, so that a primary illuminance clustering result is generated. And then, carrying out the same processing on the reverse illuminance set to obtain a reverse illuminance clustering result. And traversing the primary illuminance clustering result according to the reverse illuminance clustering result to perform clustering analysis, acquiring a part of an area intersection in the forward illuminance set and the reverse illuminance set, and generating a secondary illuminance clustering result.
As shown in fig. 2, the method steps 200 provided in the embodiment of the present application further include:
step 210: randomly extracting two forward illuminance values from the forward illuminance set to obtain a forward illuminance difference value;
step 220: judging whether the forward illuminance difference value meets a first preset difference value or not;
step 230: if yes, adding the two forward illuminance into the same clustering result, screening out the two forward illuminance sets, calculating a forward illuminance mean value, and adding the forward illuminance mean value into the forward illuminance set;
step 240: and repeating clustering, and when all the forward illuminance sets do not meet the first preset difference value, generating the primary illuminance clustering result.
Specifically, two forward illuminance data are randomly extracted from the forward illuminance set, and the forward illuminance data is subjected to data difference calculation to obtain a difference value of the forward illuminance data. And then, judging whether the forward illumination difference value meets a first preset difference value, wherein the first preset difference value can be set according to the actual illumination condition. And if the difference between the two forward illuminance is smaller when the first preset difference is met, adding the two forward illuminance into the same clustering result, screening out the two forward illuminance from the forward illuminance set, then calculating the mean value of the two forward illuminance, adding the mean value into the forward illuminance set, and reducing the data volume of the illuminance data processing. And repeatedly clustering, when all the forward illuminance sets do not meet the first preset difference value, completing clustering of the forward illuminance sets to generate a primary illuminance clustering result, and by obtaining the clustering result, the data processing amount of the forward illuminance sets is reduced, and the operation efficiency of the system is improved.
The method steps 300 provided by the embodiment of the present application further include:
step 310: randomly extracting two reverse illuminance values from the reverse illuminance set to obtain a reverse illuminance difference value;
step 320: judging whether the reverse illuminance difference value meets a second preset difference value or not;
step 330: if so, adding the two reverse illuminance into the same clustering result, screening out the two reverse illuminance from the reverse illuminance set, calculating a reverse illuminance mean value, and adding the reverse illuminance mean value into the reverse illuminance set;
step 340: repeating clustering, and when all the reverse illuminance sets do not meet the second preset difference value, generating a reverse illuminance clustering result;
step 350: and obtaining an intersection of the reverse illuminance clustering result and the primary illuminance clustering result to generate a secondary illuminance clustering result.
Specifically, two pieces of reverse illuminance data are randomly extracted from the reverse illuminance set, and the difference of the reverse illuminance data is calculated to obtain the difference of the reverse illuminance data. And then, judging whether the reverse illuminance difference value meets a second preset difference value, wherein the second preset difference value can be set according to the actual illumination condition. And if the difference between the two reverse illuminance is smaller when the second preset difference is met, adding the two reverse illuminance into the same clustering result, screening out the two reverse illuminance from the reverse illuminance set, then calculating the mean value of the two reverse illuminance, adding the mean value into the reverse illuminance set, and reducing the data volume of illuminance data processing. And repeatedly clustering, and when all the reverse illuminance sets do not meet the second preset difference value, finishing clustering the reverse illuminance sets to generate a reverse illuminance clustering result. And then, obtaining an intersection of the reverse illuminance clustering result and the primary illuminance clustering result, obtaining areas with the same area in the reverse illuminance clustering result and the primary illuminance clustering result, and generating a secondary illuminance clustering result.
The method steps 350 provided by the embodiment of the present application further include:
step 351: traversing the reverse illumination clustering result to generate a reverse illumination area position set;
step 352: traversing the primary illuminance clustering result to generate a forward illumination area position set;
step 353: and solving an area intersection of the reverse illumination area position set and the forward illumination area position set to generate the secondary illumination clustering result.
Specifically, traversing the reverse illumination clustering result to obtain a reverse illumination area position set. Traversing the first-level illuminance clustering result to generate a forward illumination area position set. And solving the region intersection of the reverse illumination region position set and the forward illumination region position set, obtaining the part of the reverse illumination region position set and the forward illumination region with the region intersection, and generating the secondary illumination clustering result. And the secondary illuminance clustering result comprises forward and reverse ambient light data of the intersection area, and the reverse illumination area position set and the forward illumination area position are obtained after clustering through the forward illumination set and the reverse illumination set, so that all area intersection parts jointly form a preset display area of the display screen. The secondary illuminance clustering result contains forward and reverse ambient illuminance data of the display area of the display screen, and data support is provided for subsequent accurate adjustment of the display area of the display screen.
Step 400: traversing the secondary illuminance clustering result to optimize the display brightness and generate a display brightness analog quantity;
specifically, the secondary illuminance clustering result is traversed to optimize the display brightness, wherein when the display brightness is optimized, a screen brightness display optimization fitness function suitable for human eyes is obtained by constructing the relationship between human eye perceived brightness and the display brightness, and the analog quantity of the display brightness is generated. The acquired display brightness analog quantity is the screen display brightness which accords with the human eye perception brightness.
As shown in fig. 3, the method steps 400 provided by the embodiment of the present application further include:
step 410: acquiring a display brightness adjustment constraint interval according to the LED display screen;
step 420: constructing an optimized fitness function according to a Weber-Fechner law;
step 430: and optimizing the display brightness based on the display brightness adjustment constraint interval and the optimization fitness function to generate the display brightness analog quantity.
Specifically, a display brightness adjustment constraint interval is obtained according to the LED display screen. And the display brightness adjustment constraint interval is a constraint range of the display brightness of the LED display screen. And then, constructing an optimized fitness function according to a Weber-Fisher law, wherein the Weber-Fisher law is a law for showing the relation between the psychological quantity and the physical quantity, and the human eye perception brightness and the display brightness also accord with the Weber-Fisher law. In order to provide better display effect, in the embodiment, the relationship between the human eye perception brightness and the display brightness of the display is constructed through the weber-fisher law, and the optimized fitness function is constructed. And then, according to the display brightness adjustment constraint interval and the optimization fitness function, optimizing the display brightness through the relationship between the human eye perception brightness and the display brightness of the display, and generating a display brightness analog quantity.
The method steps 420 provided by the embodiment of the present application further include:
step 421:
step 422: wherein p is fitness, X j Indicating the display brightness of the jth iteration, I 1 Represents the illuminance, k, of forward light 1 *lgI 1 Indicating the perceived brightness of the human eye under the influence of forward illuminance, I 2 Indicating the intensity of the backward illumination, k 2 *lgI 2 Indicating the perceived brightness, k, of the human eye under the effect of reverse illumination 1 、k 2 、k 0 Is a constant set according to weber-fisher's law.
Specifically, an optimized fitness function is constructed according to the weber-fisher law, and the optimized fitness function is as follows:
and completing the simulation of the relation between the human eye perception brightness and the display brightness of the display. Wherein p is fitness, X j Indicating the display brightness of the jth iteration, I 1 Denotes the forward illuminance, k 1 *lgI 1 Indicating the perceived brightness of the human eye under the influence of forward illuminance, I 2 Indicating the intensity of the backward illumination, k 2 *lgI 2 Indicating the perceived brightness, k, of the human eye under the influence of reverse illuminance 1 、k 2 、k 0 Is a constant set according to weber-fisher's law. By acquiring the fitness parameter, the adjustment of the human eye feeling brightness under the action of the forward illuminance and the adjustment of the human eye feeling brightness under the action of the reverse illuminance on the display brightness are realized, the display effect of the display is further improved, and the comfort level of human eye watching is improved.
The method steps 420 provided by the embodiment of the present application further include:
step 423: randomly selecting jth display brightness according to the display brightness adjustment constraint interval;
step 424: inputting the jth display brightness into the optimized fitness function to obtain a jth fitness;
step 425: judging whether the jth fitness meets a preset fitness interval or not;
step 426: and if so, setting the j-th display brightness as the display brightness analog quantity.
Specifically, the jth display brightness is randomly selected through the display brightness adjustment constraint interval, that is, the brightness parameter in the display brightness adjustment constraint interval is randomly acquired. And inputting the jth display brightness into the optimized fitness function to obtain the jth fitness. And then, judging whether the jth fitness meets a preset fitness interval, wherein the fitness is adjusted according to the human eye perception because the human eye perception brightness is not only related to the screen brightness but also related to the ambient light of the surrounding environment, namely the ambient light influence parameter is added on the basis of the original screen brightness, and the screen brightness is adjusted according to the human eye perception, so that the adjustment range of the fitness on the screen light, namely the preset fitness interval, is within 0-1. And when the jth fitness meets a preset fitness interval, setting the jth display brightness as the display brightness analog quantity.
Step 500: splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result;
step 600: traversing the splitting result of the display area, and detecting through a spectral color brightness meter to generate an initial amount of display brightness;
step 700: and adjusting the initial display brightness quantity according to the display brightness analog quantity.
Specifically, splitting a preset display area according to the secondary illuminance clustering result, splitting the preset display area into a plurality of display areas, and generating a display area splitting result. And then traversing the split display area split results, respectively detecting the split display area split results through a spectral color luminance meter, and obtaining the initial display brightness amount of each split display area result. The spectrum color brightness meter is used for detecting actual display brightness of split results of each display area, splitting the preset display area and detecting the brightness of the split areas respectively, and calculating the mean value of the brightness detection results of each area, so that the acquired initial amount of screen display brightness is more accurate. And finally, adjusting the initial display brightness quantity according to the acquired display brightness analog quantity to finish the adjustment of the brightness of the LED display screen. The initial brightness of the display screen is accurately obtained by splitting the display area, and the initial brightness of the display screen is further adjusted by the display brightness analog quantity, so that the accurate adjustment of the brightness of the LED display screen is realized, and the watching effect of a user is improved.
To sum up, in the method provided by the embodiment of the present application, the photosensitive sensor detects the preset display area to generate the forward illuminance set and the backward illuminance set. And carrying out cluster analysis on the forward illuminance set to generate a first-level illuminance cluster result. And performing clustering analysis according to the reverse illuminance set traversal primary illuminance clustering result to generate a secondary illuminance clustering result. And optimizing the display brightness of the secondary illuminance clustering result to generate a display brightness analog quantity. And splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result and obtain the initial display brightness. And traversing the splitting result of the display area, and detecting by a spectral color brightness meter to generate the initial amount of display brightness. And adjusting the initial display brightness quantity according to the display brightness analog quantity to finish the adjustment of the LED display screen. The initial brightness of the display screen is accurately acquired by splitting the display area, and the initial brightness of the display screen is further adjusted by the display brightness analog quantity, so that the brightness of the LED display screen is accurately adjusted, and the watching effect of a user is improved. Meanwhile, the adjustment of the human eye feeling brightness under the action of forward illuminance and the adjustment of the human eye feeling brightness under the action of reverse illuminance on the display brightness are realized by constructing an optimized fitness function, so that the display effect of the display is further improved, and the watching comfort of human eyes is improved. The technical problem that in the prior art, the LED display screen is low in brightness adjusting accuracy, brightness adjustment cannot be optimized according to human eyes, and therefore the watching effect of a user is poor is solved.
Example two
Based on the same inventive concept as the brightness debugging method of the LED display screen in the foregoing embodiment, as shown in fig. 4, the present application provides a brightness debugging system of an LED display screen, where the system is in communication connection with a photosensitive sensor and a spectral color brightness meter, and the system includes:
the ambient illuminance acquisition module 11 is configured to detect a preset display area of the LED display screen through a photosensitive sensor to generate ambient illuminance, where the ambient illuminance includes a forward illuminance set and a reverse illuminance set;
a primary illuminance clustering result obtaining module 12, configured to perform clustering analysis according to the forward illuminance set, and generate a primary illuminance clustering result;
a secondary illuminance clustering result obtaining module 13, configured to perform clustering analysis according to the backward illuminance set traversing the primary illuminance clustering result, so as to generate a secondary illuminance clustering result;
the display brightness analog quantity generation module 14 is configured to traverse the secondary illuminance clustering result to perform display brightness optimization, so as to generate a display brightness analog quantity;
a preset display area splitting module 15, configured to split the preset display area according to the secondary illuminance clustering result, so as to generate a display area splitting result;
a display brightness initial quantity obtaining module 16, configured to traverse the display area splitting result, and perform detection by using a spectral color brightness meter to generate a display brightness initial quantity;
and the brightness adjusting module 17 is configured to adjust the initial display brightness amount according to the display brightness analog quantity.
Further, the primary illuminance clustering result obtaining module 12 is further configured to:
randomly extracting two forward illuminance values from the forward illuminance set to obtain a forward illuminance difference value;
judging whether the forward illuminance difference value meets a first preset difference value or not;
if yes, adding the two forward illuminance into the same clustering result, screening out the two forward illuminance sets, calculating a forward illuminance mean value, and adding the forward illuminance mean value into the forward illuminance set;
and repeating clustering, and when all the forward illuminance sets do not meet the first preset difference value, generating the primary illuminance clustering result.
Further, the secondary illuminance clustering result obtaining module 13 is further configured to:
randomly extracting two reverse illuminance values from the reverse illuminance set to obtain a reverse illuminance difference value;
judging whether the reverse illuminance difference value meets a second preset difference value or not;
if so, adding the two reverse illuminance into the same clustering result, screening out the two reverse illuminance from the reverse illuminance set, calculating a reverse illuminance mean value, and adding the reverse illuminance mean value into the reverse illuminance set;
repeating clustering, and when all the reverse illuminance sets do not meet the second preset difference value, generating a reverse illuminance clustering result;
and obtaining an intersection of the reverse illuminance clustering result and the primary illuminance clustering result to generate a secondary illuminance clustering result.
Further, the secondary illuminance clustering result obtaining module 13 is further configured to:
traversing the reverse illumination clustering result to generate a reverse illumination area position set;
traversing the primary illuminance clustering result to generate a forward illumination area position set;
and solving the region intersection of the reverse illumination region position set and the forward illumination region position set to generate the secondary illumination clustering result.
Further, the display brightness analog quantity generating module 14 is further configured to:
acquiring a display brightness adjustment constraint interval according to the LED display screen;
constructing an optimized fitness function according to a Weber-Fechner law;
and optimizing the display brightness based on the display brightness adjustment constraint interval and the optimization fitness function to generate the display brightness analog quantity.
Further, the display brightness analog quantity generating module 14 is further configured to:
according to the Weber-Fisher law, an optimized fitness function is constructed:
wherein p is fitness, X j Indicating the display brightness of the jth iteration, I 1 Denotes the forward illuminance, k 1 *lgI 1 Indicating the perceived brightness of the human eye under the influence of forward illuminance, I 2 Indicating a reversal of directionIlluminance, k 2 *lgI 2 Indicating the perceived brightness, k, of the human eye under the influence of reverse illuminance 1 、k 2 、k 0 Is a constant set according to weber-fisher's law.
Further, the display brightness analog quantity generating module 14 is further configured to:
randomly selecting jth display brightness according to the display brightness adjustment constraint interval;
inputting the jth display brightness into the optimized fitness function to obtain a jth fitness;
judging whether the jth fitness meets a preset fitness interval or not;
and if so, setting the j-th display brightness as the display brightness analog quantity.
The second embodiment is used for executing the method as in the first embodiment, and both the execution principle and the execution basis can be obtained through the content recorded in the first embodiment, which is not described in detail herein. Although the present application has been described in connection with particular features and embodiments thereof, the present application is not limited to the example embodiments described herein. Based on the embodiments of the present application, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application, and the content thus obtained also falls within the scope of protection of the present application.
Claims (8)
1. A brightness debugging method of an LED display screen is characterized in that the method applies a brightness debugging system of the LED display screen, the system is in communication connection with a photosensitive sensor and a spectral color brightness meter, and the method comprises the following steps:
detecting a preset display area of the LED display screen through a photosensitive sensor to generate ambient illuminance, wherein the ambient illuminance comprises a forward illuminance set and a reverse illuminance set;
performing cluster analysis according to the forward illuminance set to generate a first-level illuminance cluster result;
traversing the primary illuminance clustering result according to the reverse illuminance set to perform clustering analysis to generate a secondary illuminance clustering result;
traversing the secondary illuminance clustering result to optimize the display brightness and generate a display brightness analog quantity;
splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result;
traversing the splitting result of the display area, and detecting through a spectrum color brightness meter to generate an initial amount of display brightness;
and adjusting the initial display brightness quantity according to the display brightness analog quantity.
2. The method of claim 1, wherein said performing a cluster analysis based on said set of forward luminances to generate a first level luminance cluster result comprises:
randomly extracting two forward illuminance values from the forward illuminance set to obtain a forward illuminance difference value;
judging whether the forward illuminance difference value meets a first preset difference value or not;
if yes, adding the two forward illuminance into the same clustering result, screening out the two forward illuminance sets, calculating a forward illuminance mean value, and adding the forward illuminance mean value into the forward illuminance set;
and repeating clustering, and when the forward illuminance set does not meet the first preset difference value, generating a primary illuminance clustering result.
3. The method as claimed in claim 1, wherein said performing a cluster analysis based on said backward illumination set traversing said primary illumination cluster results to generate secondary illumination cluster results comprises:
randomly extracting two reverse illuminance values from the reverse illuminance set to obtain a reverse illuminance difference value;
judging whether the reverse illuminance difference value meets a second preset difference value or not;
if so, adding the two reverse illuminance into the same clustering result, screening out the two reverse illuminance from the reverse illuminance set, calculating a reverse illuminance mean value, and adding the reverse illuminance mean value into the reverse illuminance set;
repeating clustering, and when all the backward illuminance sets do not meet the second preset difference value, generating a backward illuminance clustering result;
and obtaining an intersection of the reverse illuminance clustering result and the primary illuminance clustering result to generate a secondary illuminance clustering result.
4. The method as claimed in claim 3, wherein said intersecting said reverse illuminance clustering result and said first-level illuminance clustering result to generate said second-level illuminance clustering result comprises:
traversing the reverse illumination clustering result to generate a reverse illumination area position set;
traversing the first-level illuminance clustering result to generate a forward illumination area position set;
and solving the region intersection of the reverse illumination region position set and the forward illumination region position set to generate the secondary illumination clustering result.
5. The method of claim 1, wherein traversing the secondary illuminance clustering results for display brightness optimization to generate a display brightness analog comprises:
acquiring a display brightness adjustment constraint interval according to the LED display screen;
constructing an optimized fitness function according to a Weber-Fechner law;
and optimizing the display brightness based on the display brightness adjustment constraint interval and the optimization fitness function to generate the display brightness analog quantity.
6. The method of claim 5, wherein the optimal fitness function is constructed according to weber-fisher's law:
wherein p is fitness, X j Indicating the display brightness of the jth iteration, I 1 Denotes the forward illuminance, k 1 *lgI 1 Indicating the perceived brightness of the human eye under the influence of forward illuminance, I 2 Indicating the intensity of the backward illumination, k 2 *lgI 2 Indicating the perceived brightness, k, of the human eye under the influence of reverse illuminance 1 、k 2 、k 0 Is a constant set according to weber-fisher's law.
7. The method of claim 6, wherein performing the display brightness optimization based on the display brightness adjustment constraint interval and the optimized fitness function to generate the display brightness analog quantity comprises:
randomly selecting jth display brightness according to the display brightness adjustment constraint interval;
inputting the jth display brightness into the optimized fitness function to obtain a jth fitness;
judging whether the jth fitness meets a preset fitness interval or not;
and if so, setting the j-th display brightness as the display brightness analog quantity.
8. The system is characterized in that the system is in communication connection with a photosensitive sensor and a spectral color luminance meter, and the system comprises:
the system comprises an ambient illuminance acquisition module, a display control module and a display control module, wherein the ambient illuminance acquisition module is used for detecting a preset display area of an LED display screen through a photosensitive sensor to generate ambient illuminance, and the ambient illuminance comprises a forward illuminance set and a reverse illuminance set;
the primary illuminance clustering result acquisition module is used for carrying out clustering analysis according to the forward illuminance set to generate a primary illuminance clustering result;
the secondary illuminance clustering result acquisition module is used for traversing the primary illuminance clustering result according to the reverse illuminance set to perform clustering analysis so as to generate a secondary illuminance clustering result;
the display brightness analog quantity generation module is used for traversing the secondary illuminance clustering result to optimize the display brightness and generate a display brightness analog quantity;
the preset display area splitting module is used for splitting the preset display area according to the secondary illuminance clustering result to generate a display area splitting result;
the display brightness initial quantity acquisition module is used for traversing the display area splitting result, detecting the result through a spectrum color brightness meter and generating a display brightness initial quantity;
and the brightness adjusting module is used for adjusting the initial display brightness quantity according to the display brightness analog quantity.
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