CN115132125A - Brightness adjusting method and device, computer equipment and computer readable storage medium - Google Patents
Brightness adjusting method and device, computer equipment and computer readable storage medium Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
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Abstract
The embodiment of the application provides a brightness adjusting method, a brightness adjusting device, computer equipment and a computer readable storage medium, which can acquire the brightness value of a pixel point in a display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameter; because this application embodiment can confirm the luminance control parameter that the pixel point that is not the highlight region corresponds according to the highlight region to can carry out luminance control to the pixel point in highlight region according to luminance control parameter, carry out luminance compensation to the pixel point in highlight region according to luminance control parameter fairly, so can improve the homogeneity of display screen luminance.
Description
Technical Field
The application relates to the technical field of LEDs, in particular to a brightness adjusting method, a brightness adjusting device, computer equipment and a computer readable storage medium.
Background
The LED display screen has the advantages of high brightness, high resolution, good picture quality and the like. With the development of the LED display screen technology, the phenomena that the gray scale and the pixel density of the LED display screen are continuously improved and the refreshing frequency is faster and faster appear.
Based on this, in the same lamp panel of the LED display screen, a high-contrast coupling phenomenon caused by AC (i.e., alternating current) crosstalk occurs. The high contrast coupling phenomenon is in the same lamp plate of LED display screen, the mutual interference between the pixel of same line causes, the concrete expression is that the mutual interference causes between the LED of the different pixel of same line, for example, to the pixel of same line, the LED of highlight regional pixel disturbs the LED of the regional pixel of non-highlight, lead to with the regional pixel of highlight in the regional luminance of the regional pixel of non-highlight on same line darken, thereby lead to with the regional pixel of highlight in the regional pixel of non-highlight on same line, than with the regional pixel of highlight not in the regional luminance of the regional pixel of non-highlight on same line low, also, that, lead to the uneven phenomenon of existence luminance of LED display screen.
Disclosure of Invention
The embodiment of the application provides a brightness adjusting method, a brightness adjusting device, computer equipment and a computer readable storage medium, which can improve the uniformity of the brightness of a display screen.
A brightness adjustment method, comprising:
acquiring the brightness value of a pixel point in a display screen;
determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point;
determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas;
and adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameter.
Accordingly, an embodiment of the present application provides a brightness adjustment apparatus, including:
the acquisition unit can be used for acquiring the brightness value of a pixel point in a display screen;
the first determining unit may be configured to determine a highlight region in the display screen and a non-highlight region in the display screen according to the luminance value of the pixel point;
the second determining unit may be configured to determine, according to the highlight region, a brightness adjustment parameter corresponding to a pixel point in the non-highlight region;
and the brightness adjusting unit can be used for adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameters.
In some embodiments, the second determining unit may be specifically configured to determine the width of the highlight region according to the number of the pixel points in the highlight region; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the width of the highlight areas.
In some embodiments, the second determining unit may be specifically configured to determine a width of the display screen; determining the width ratio of the highlight area to the display screen according to the width of the highlight area and the width of the display screen; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight area according to the width proportion.
In some embodiments, the second determining unit may be specifically configured to screen out a target parameter set from a preset brightness adjustment parameter set according to the width ratio; and extracting brightness adjusting parameters corresponding to the pixel points of the non-highlight areas from the target parameter set.
In some embodiments, the brightness adjustment unit may be specifically configured to determine a target LED chip corresponding to the brightness adjustment parameter in a pixel point of the non-highlight region; and adjusting the brightness of the target LED chip of the pixel point according to the brightness adjusting parameter.
In some embodiments, the brightness adjusting unit may be specifically configured to obtain a reference position where a pixel point in the highlight region is located; determining a target pixel point in the non-highlight area according to the reference position; and determining a target LED chip corresponding to the brightness adjusting parameter in the target pixel point of the non-high brightness area.
In some embodiments, the first determining unit may be specifically configured to determine that a highlight region exists in the display screen if the brightness value of the pixel point is greater than or equal to a preset brightness threshold; taking the pixel points with the brightness values larger than or equal to a preset brightness threshold value as highlight pixel points, and generating highlight areas according to the positions of the highlight pixel points; and taking the pixel points with the brightness values smaller than the preset brightness threshold value as non-highlight pixel points, and generating non-highlight areas according to the positions of the non-highlight pixel points.
In some embodiments, the first determining unit may be specifically configured to use, as the highlight pixel, a pixel having a luminance value greater than or equal to a preset luminance threshold; generating an initial highlight area according to the highlight pixel points; and if the number of the highlight pixel points in the initial highlight area is greater than a preset number threshold, taking the initial highlight area as a highlight area.
In addition, the embodiment of the application also provides a computer device, which comprises a memory and a processor; the memory stores a computer program, and the processor is used for operating the computer program in the memory to execute any brightness adjusting method provided by the embodiment of the application.
In addition, an embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored, and the computer program is suitable for being loaded by a processor to execute any one of the brightness adjustment methods provided in the embodiment of the present application.
The method and the device can obtain the brightness value of the pixel point in the display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameters; because this application embodiment can be according to the highlight region, confirms the luminance control parameter that the pixel point of non-highlight region corresponds to can carry out luminance control to the pixel of highlight region according to the luminance control parameter, carry out luminance compensation to the pixel of highlight region according to the luminance control parameter so can improve the homogeneity of display screen luminance.
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In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a scene schematic diagram of a brightness adjustment method provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of a brightness adjustment method provided in an embodiment of the present application;
FIG. 3 is a schematic layout diagram of LED chips of a display screen provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a highlight region and a non-highlight region of a display screen provided by an embodiment of the present application;
fig. 5 is a schematic structural diagram of a brightness adjusting device provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a computer device provided in 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a brightness adjusting method, a brightness adjusting device, computer equipment and a computer readable storage medium. The brightness adjusting device may be integrated in a computer device, and the computer device may be a server or a terminal.
The server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing basic cloud computing services such as cloud service, a cloud database, cloud computing, a cloud function, cloud storage, Network service, cloud communication, middleware service, domain name service, security service, Network acceleration service (CDN), big data and an artificial intelligence platform. The terminal may be, but is not limited to, a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, and the like. The terminal and the server may be directly or indirectly connected through wired or wireless communication, and the application is not limited herein.
For example, referring to fig. 1, taking an example that the brightness adjusting device is integrated in a computer device, the computer device obtains the brightness value of a pixel point in a display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; and adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameter.
Wherein the display screen may comprise an LED display screen.
Wherein, a pixel can include three LED chip, and these three LED chips can be R chip, G chip, B chip respectively. The R chip may refer to an LED chip emitting red light, the G chip may refer to an LED chip emitting green light, and the B chip may refer to an LED chip emitting blue light.
The highlight area can be an area where a pixel point with high luminance is located in the display screen; the non-highlight area may be an area where a pixel point with lower luminance is located in the display screen.
The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
In this embodiment, a description will be given from the perspective of a brightness adjustment apparatus, where the brightness adjustment apparatus may be specifically integrated in a computer device, and the computer device may be a server or a terminal; the terminal may include a tablet Computer, a notebook Computer, a Personal Computer (PC), a wearable device, a virtual reality device, or other intelligent devices capable of acquiring data.
As shown in fig. 2, the specific flow of the brightness adjusting method is as follows:
s101, obtaining the brightness value of a pixel point in a display screen.
Wherein the display screen may comprise an LED display screen.
Wherein, a pixel can include three LED chip, and these three LED chips can be R chip, G chip, B chip respectively. The R chip may refer to an LED chip emitting red light, the G chip may refer to an LED chip emitting green light, and the B chip may refer to an LED chip emitting blue light.
S102, according to the brightness values of the pixel points, a highlight area in the display screen and a non-highlight area in the display screen are determined.
The highlight area can be an area where a pixel point with high luminance is located in the display screen; the non-highlight area may be an area where a pixel with low luminance is located in the display screen.
S103, determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the highlight areas.
And S104, adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameters.
The embodiment of the application can adjust the brightness of the pixel points in the non-highlight area, can compensate the brightness of the pixel points in the non-highlight area, and specifically can increase the pulse width of the pixel points in the non-highlight area.
The method and the device can obtain the brightness value of the pixel point in the display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameters; because this application embodiment can confirm the luminance control parameter that the pixel point in non-highlight region corresponds according to the highlight region to can carry out luminance control to the pixel in highlight region according to luminance control parameter, carry out luminance compensation to the pixel in highlight region according to luminance control parameter rather, so can improve the homogeneity of display screen luminance
Before brightness adjustment is performed on a display screen, the principle of the embodiment of the present application needs to be explained in the embodiment of the present application. See below for details.
The display screen of the embodiment of the application can be a display screen with 16bit depth. As shown in fig. 3, the display screen of the embodiment of the present application includes a plurality of LED chips, where Dn represents an LED chip, and n is a positive integer. The display screen comprises a plurality of pixel points, and each pixel point comprises 3 LED chips which are respectively an R chip, a G chip and a B chip. The R chip may refer to an LED chip emitting red light, the G chip may refer to an LED chip emitting green light, and the B chip may refer to an LED chip emitting blue light.
For example, fig. 3 includes 6 pixels, which are the first pixel, the second pixel, the third pixel, the fourth pixel, the fifth pixel, and the sixth pixel.
The first pixel point comprises D1, D2 and D3, the second pixel point comprises D4, D5 and D6, and the third pixel point comprises D7, D8 and D9; the fourth pixel point comprises D10, D11 and D12, the fifth pixel point comprises D13, D14 and D15, and the sixth pixel point comprises D16, D17 and D18.
The LED chips on the same column as D1 can all be red light emitting LED chips, that is, in fig. 3, D1, D4, and D7 are red light emitting LED chips; the LED chips on the same column as D2 may all be green light emitting LED chips, that is, in fig. 3, D2, D5, and D8 are green light emitting LED chips; the LED chips on the same column as D3 may all be blue light emitting LED chips, that is, in fig. 3, D3, D6, and D9 are blue light emitting LED chips.
The LED chips on the same column as D10 may all be red LED chips, that is, in fig. 3, D10, D13 and D16 are red LED chips; the LED chips on the same column as D11 may all be green light emitting LED chips, that is, in fig. 3, D11, D14, and D17 are green light emitting LED chips; the LED chips on the same column as D12 may all be blue light emitting LED chips, that is, in fig. 3, D12, D15 and D18 may all be blue light emitting LED chips.
The first pixel point, the second pixel point and the third pixel point are all pixel points in highlight areas, and the fourth pixel point, the fifth pixel point and the sixth pixel point are all pixel points in non-highlight areas.
When the display screen is opened, if the highlight area and the non-highlight area are opened simultaneously, because there is a coupling phenomenon between the pixel point of the highlight area and the pixel point of the non-highlight area, for example, a high-contrast coupling phenomenon, that is, on the same line, the pixel point of the highlight area and the pixel point of the non-highlight area interfere with each other, so that the pixel point in the non-highlight area has a phenomenon of uneven brightness, that is, the display screen has a phenomenon of uneven brightness.
For example, the first pixel point and the fourth pixel point are located on the same line, the first pixel point is a pixel point in a highlight area, the fourth pixel point is a pixel point in a non-highlight area, and the LED chip in the first pixel point interferes with the LED chip in the fourth pixel point, so that the potential difference between the two ends of the LED chip in the fourth pixel point is reduced, and the LED chip in the fourth pixel point is darkened.
Based on the above, the embodiments of the present application are modified as described in detail below.
According to the embodiment of the application, the LED chips which emit red light in the high-brightness area and the non-high-brightness area in the display screen can be controlled to be started in advance. For the red light emitting LED chip in the non-highlight region, the embodiment of the present application may control the red light emitting LED chip in the non-highlight region to emit light according to different luminance values, and may measure the coupling luminance value of the red light emitting LED chip in the non-highlight region by a luminance detection instrument.
In the embodiment of the present application, the brightness value of the LED chip can be represented by a gray scale, and the range of the brightness value of the LED chip includes 0-255 gray scales. The LED chip emitting red light in the non-highlight area can be controlled to emit light according to different levels of gray scales, and the coupling brightness value of the LED chip emitting red light in the non-highlight area is measured.
Then, the embodiment of the application can control the display screen to only display the non-highlight area and not display the highlight area. And controlling the LED chip emitting red light in the non-highlight area to emit light according to different levels of gray scales, and measuring the original brightness value of the LED chip emitting red light in the non-highlight area.
Based on the above, in the embodiment of the application, the comparison data set of the LED chip emitting red light in the non-highlight area in the different levels of gray scales can be obtained, where the comparison data set includes the coupling luminance value of the LED chip emitting red light in the non-highlight area and the original luminance value of the LED chip emitting red light in the non-highlight area in the same level of gray scale.
Similarly, the LED chip which emits green light in the non-highlight area is changed into the LED chip which emits green light in the non-highlight area, the process is repeated, and the comparison data set of the LED chips which emit green light in the non-highlight area under different levels of gray scales is obtained, wherein the comparison data set comprises the coupling brightness value of the LED chips which emit green light in the non-highlight area and the original brightness value of the LED chips which emit green light in the non-highlight area under the same level of gray scale.
Similarly, the LED chip which emits blue light in the non-highlight area is changed into the LED chip which emits blue light in the non-highlight area, the process is repeated, and the comparison data set of the LED chip which emits blue light in the non-highlight area under different levels of gray scales is obtained, wherein the comparison data set comprises the coupling brightness value of the LED chip which emits blue light in the non-highlight area and the original brightness value of the LED chip which emits blue light in the non-highlight area under the same level of gray scale.
Based on the above, in the embodiment of the application, the width of the highlight region may be changed without changing the height of the highlight region, so as to change the width ratio of the highlight region to the display screen, and obtain the contrast data set of the LED chip emitting red light in the non-highlight region corresponding to different levels of gray scale, the contrast data set of the LED chip emitting green light in the non-highlight region corresponding to different levels of gray scale, and the contrast data set of the LED chip emitting blue light in the non-highlight region corresponding to different levels of gray scale in different width ratios.
The width proportion calculation formula can be detailed in formula (1):
formula (1) of X/Y ═ Z
Where X denotes the width of the highlight area, Y denotes the width of the display screen, Z denotes the width ratio, and Z may be one fifth, one fourth, one third, one half, and so on, as shown in fig. 4.
Based on the above, the embodiment of the present application can calculate the first absolute value of the difference between the contrast data sets of the LED chips emitting red light in the non-highlight region under the same width ratio and the same level gray scale, that is, the coupling luminance value of the LED chips emitting red light in the non-highlight region, and the original luminance value of the LED chips emitting red light in the non-highlight region.
Similarly, the embodiment of the present application may calculate a second absolute difference value between the comparison data sets of the LED chips emitting green light in the non-highlight region under the same width ratio and the same gray scale, that is, a second absolute difference value between the coupling luminance value of the LED chip emitting green light in the non-highlight region and the original luminance value of the LED chip emitting green light in the non-highlight region.
Similarly, the third absolute difference between the comparison data sets of the blue-emitting LED chips in the non-highlighted region under the same width ratio and the same gray scale level, that is, the coupling luminance value of the blue-emitting LED chips in the non-highlighted region, and the original luminance value of the blue-emitting LED chips in the non-highlighted region can be calculated.
The coupling influence rate can be determined based on the absolute value of the difference, and the coupling influence rate represents the influence degree of the coupling phenomenon between the highlight area and the non-highlight area on the LED chips of the pixels in the non-highlight area. The difference absolute value comprises a first difference absolute value, a second difference absolute value and a third difference absolute value. The coupling influence rate is calculated as shown in formula (2):
a ═ (B ÷ C) × 100% formula (2)
Wherein, a represents a coupling influence ratio, B represents an absolute value of a difference, and C represents an original luminance value of the LED chips in the non-highlight region, the LED chips including a red light emitting LED chip, a green light emitting LED chip, and a blue light emitting LED chip.
Wherein, when A is less than 1%, it represents that the coupling phenomenon between the highlight region and the non-highlight region is negligible.
In the embodiment of the present application, the absolute difference value may be converted into a luminance value using a preset Gray scale as a unit, where the preset Gray scale is expressed by Gray. Based on this, the absolute value of the difference B ═ kGray, where k is a constant, can be obtained.
Based on the above, the brightness compensation method for the LED chip in the embodiment of the present application may be: compensating the absolute value of the difference value on the basis of the coupling brightness value of the LED chip in the non-highlight area, which is detailed in formula (3):
NGray-nGray + kGray equation (3)
Since Gray is the unit, based on this, equation (3) can be simplified to equation (4):
n + k formula (4)
Wherein N represents the post-compensation brightness value of the LED chip in the non-highlight area; n represents the coupling brightness value of the LED chip in the non-highlight area; k represents the absolute value of the difference of the LED chips in the non-highlighted area.
Based on the above, in the embodiment of the application, on the basis of the original brightness value of the LED chip in the non-highlight area, after the absolute value of the difference is compensated, the influence of the coupling effect on the LED chip in the non-highlight area can be reduced or even eliminated.
Based on the above, in the embodiment of the present application, a luminance compensation matrix of a pixel point can be obtained, and the parameter matrix is described in detail as follows:
wherein N is Rm Representing the compensated brightness value of the red-emitting LED chip with brightness in the non-highlight area under the m-level gray scale; n is a radical of Gm The compensated brightness value of the LED chip with green brightness in the non-high brightness area under m-level gray scale is shown; n is a radical of Bm And the compensated brightness value of the LED chip with blue light emitting brightness in the non-highlight area under the m-level gray scale is shown.
Wherein n is rm The coupling brightness value of the LED chip with the red brightness in the non-highlight area under the m-level gray scale is represented; n is a radical of an alkyl radical gm Couple of LED chips with green brightness in non-high brightness region under m-level gray scaleCombining the brightness values; n is bm And the coupling brightness value of the LED chip with blue light emitting brightness in the non-high brightness area under the m-level gray scale is shown.
Wherein k is rm The difference absolute value of the LED chip with red brightness in the non-highlight area under the m-level gray scale, namely the compensation brightness value is represented; k is a radical of formula gm The compensation brightness value of the LED chip with the brightness emitting green light in the non-high brightness area under the m-level gray scale is shown; k is a radical of formula bm And the compensation brightness value of the LED chip with blue light emission brightness in the non-highlight area under the m-level gray scale is shown.
Wherein m represents the gray scale level, and the value range of m is 0-255.
When the width of the highlight area is changed, that is, when the width ratio is changed, the values of the elements in the luminance compensation matrix of the pixel change.
In the embodiment of the present application, each pixel point corresponds to a set of luminance compensation matrices. Aiming at the brightness compensation matrix set corresponding to each pixel point, the brightness compensation matrix set comprises a brightness compensation matrix corresponding to each width ratio.
In the embodiment of the application, the computer device can acquire a brightness compensation matrix corresponding to each pixel point in a non-highlight area corresponding to a preset width proportion according to the preset width proportion; generating a first incidence relation set, wherein the first incidence relation set comprises incidence relations between the positions of all pixel points and the brightness compensation matrix; and generating a second incidence relation set, wherein the second incidence relation set comprises a mapping relation between a preset width proportion and the first incidence relation set.
Based on the above, the embodiment of the present application may perform brightness adjustment on the display screen, and as shown in fig. 2, a specific flow of the brightness adjustment method may be as follows:
s101, obtaining the brightness value of a pixel point in a display screen.
The brightness values of the pixels in the display screen according to the embodiment of the present application are expressed by gray scales, for example, the brightness value is 60 gray scales.
Because the brightness value of the pixel point in the display screen is controlled by the computer device, in the embodiment of the application, the computer device obtains the brightness value of the pixel point in the display screen.
Besides, the computer device can be connected with the brightness detection instrument, the brightness values of the pixel points in the display screen are detected by the brightness detection instrument, the brightness values of the pixel points in the display screen are transmitted to the computer device, and based on the brightness values, the computer device can acquire the brightness values of the pixel points in the display screen.
S102, according to the brightness value of the pixel point, determining a highlight area in the display screen and a non-highlight area in the display screen.
In the embodiment of the application, because the highlight area generates a coupling effect on the non-highlight area, based on this, the highlight area in the display screen and the non-highlight area in the display screen can be determined in the embodiment of the application.
The manner of determining the highlight region in the display screen and the non-highlight region in the display screen by the computer device according to the brightness value of the pixel point may be as follows:
for example, if the brightness value of the pixel point is greater than or equal to the preset brightness threshold, determining that a highlight area exists in the display screen; taking the pixel points with the brightness values larger than or equal to a preset brightness threshold value as highlight pixel points, and generating highlight areas according to the positions of the highlight pixel points; and taking the pixel points with the brightness values smaller than the preset brightness threshold value as non-highlight pixel points, and generating non-highlight areas according to the positions of the non-highlight pixel points.
Wherein, the preset brightness threshold value can be set to 80 gray levels.
Based on the above, the computer device uses the pixel point with the brightness value greater than or equal to the preset brightness threshold as the highlight pixel point, and according to the highlight pixel point, the process of generating the highlight area may be as follows:
the computer equipment takes the pixel points with the brightness values larger than or equal to a preset brightness threshold value as highlight pixel points; generating an initial highlight area according to the highlight pixel points; and if the number of highlight pixel points in the initial highlight area is greater than a preset number threshold, taking the initial highlight area as a highlight area.
Because misjudgment may occur, the number of highlight pixel points in the initial highlight area is judged based on the misjudgment, so that misjudgment is avoided.
Wherein the preset number threshold may be set to 50, but is not limited to 50.
S103, determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the highlight areas.
The brightness adjusting parameter may be a brightness value.
According to the highlight area, the brightness adjustment parameters corresponding to the pixel points in the non-highlight area can be determined as follows:
for example, the computer device determines the width of the highlight region according to the number of the pixel points in the highlight region; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the width of the highlight areas.
The computer equipment can acquire a first brightness adjustment parameter mapping set, wherein the first brightness adjustment parameter mapping set comprises a mapping relation between a preset width of a highlight area and a preset brightness adjustment parameter set; acquiring a reference brightness adjusting parameter set corresponding to the width of the highlight area according to the first brightness adjusting parameter mapping set; and acquiring the positions of the pixel points in the non-highlight areas, and screening out the brightness adjusting parameters corresponding to the pixel points in the non-highlight areas from the reference brightness adjusting parameter set according to the positions of the pixel points in the non-highlight areas.
The positions of the pixels in the non-highlight areas correspond to the arrangement of the brightness adjusting parameters in the reference brightness adjusting parameter set one by one, and based on the arrangement, the brightness adjusting parameters corresponding to the pixels in the non-highlight areas can be obtained by the positions of the pixels in the non-highlight areas.
According to the width of the highlight area, the brightness adjustment parameters corresponding to the pixel points in the non-highlight area can be determined as follows:
for example, the computer device may determine the width of the display screen; determining the width proportion of the highlight area in the display screen according to the width of the highlight area and the width of the display screen; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight area according to the width proportion.
The embodiment of the application can calculate the width ratio of the highlight area to the display screen based on the formula (1), the width of the highlight area and the width of the display screen.
According to the width ratio, the brightness adjustment parameters corresponding to the pixel points in the non-highlight area can be determined as follows:
for example, the computer device may screen out a target brightness adjustment parameter set from a preset brightness adjustment parameter set according to the width ratio; and extracting brightness adjusting parameters corresponding to the pixel points of the non-highlight area from the target brightness adjusting parameter set.
The computer equipment can acquire a second brightness adjustment parameter mapping set, wherein the second brightness adjustment parameter mapping set comprises a mapping relation between a preset width ratio and a preset brightness adjustment parameter set; and acquiring a target brightness adjusting parameter set corresponding to the width ratio according to the second brightness adjusting parameter mapping set.
Based on this, the position of the pixel point in the non-highlight area can be extracted from the target brightness adjustment parameter set to obtain the brightness adjustment parameter corresponding to the pixel point in the non-highlight area.
Based on the above, the second brightness adjustment parameter mapping set in the embodiment of the present application may also be the second association set, and based on this, the embodiment of the present application may obtain the target first association set corresponding to the width ratio according to the second association set. According to the embodiment of the application, the brightness compensation matrix of the pixel points in the non-highlight area can be extracted from the target first correlation set according to the positions of the pixel points in the non-highlight area. Because the brightness compensation matrix comprises 0-255 gray scale brightness values, on the basis, aiming at each pixel point in a non-highlight area, the computer equipment can extract a compensation brightness value corresponding to the coupling brightness value from the brightness compensation matrix corresponding to the pixel point according to the brightness value of the pixel point, namely, according to the coupling brightness value of the LED chip of the pixel point; the compensation brightness value is used as a brightness adjusting parameter.
And S104, adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameters.
The brightness adjustment can be to perform brightness compensation on the pixel points in the non-highlight area, and specifically can be to increase the pulse width of the LED chip in the pixel points in the non-highlight area.
Based on the above, according to the brightness adjustment parameter, the method for adjusting the brightness of the pixel point in the non-highlight area may be as follows:
the computer equipment can determine a target LED chip corresponding to the brightness adjusting parameter in the pixel point of the non-highlight area; and adjusting the brightness of the target LED chip of the pixel point according to the brightness adjusting parameter.
The brightness adjusting parameter group may include three brightness adjusting parameters, and the three brightness adjusting parameters are a first brightness adjusting parameter, a second brightness adjusting parameter, and a third brightness adjusting parameter, respectively. Aiming at each pixel point, the first brightness adjusting parameter is the brightness adjusting parameter corresponding to the LED chip emitting red light in the pixel point, the second brightness adjusting parameter is the brightness adjusting parameter corresponding to the LED chip emitting green light in the pixel point, and the third brightness adjusting parameter is the brightness adjusting parameter corresponding to the LED chip emitting blue light in the pixel point.
The method for determining the target LED chip corresponding to the brightness adjusting parameter in the pixel point of the non-highlight area in the embodiment of the application can be as follows:
the computer equipment can obtain the reference position of the pixel point in the highlight area; determining a target pixel point in the non-highlight area according to the reference position; and determining a target LED chip corresponding to the brightness adjusting parameter in the target pixel point of the non-highlight area.
The target pixel point is a pixel point in a non-highlight area on the same line as the pixel point in the highlight area.
In the embodiment of the application, the reference LED chip emitting light in the target pixel point in the non-highlight area is detected, and the reference LED chip is used as the target LED chip corresponding to the brightness adjusting parameter in the target pixel point in the non-highlight area.
The arrangement of the brightness adjusting parameters corresponds to the target LED chips one by one.
The method and the device can acquire the brightness value of the pixel point in the display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameter; because this application embodiment can confirm the luminance control parameter that the pixel point that is not the highlight region corresponds according to the highlight region to can carry out luminance control to the pixel point in highlight region according to luminance control parameter, carry out luminance compensation to the pixel point in highlight region according to luminance control parameter fairly, so can improve the homogeneity of display screen luminance.
In order to better implement the above method, embodiments of the present application further provide a brightness adjustment apparatus, which may be integrated in a computer device, such as a server or a terminal, and the terminal may include a tablet computer, a notebook computer, and/or a personal computer.
For example, as shown in fig. 5, the luminance adjusting apparatus may include an acquisition unit 301, a first determination unit 302, a second determination unit 303, and a luminance adjusting unit 304 as follows:
(1) an acquisition unit 301;
the obtaining unit 301 may be configured to obtain a brightness value of a pixel in a display screen.
(2) A first determination unit 302;
the first determining unit 302 may be configured to determine a highlight region in the display screen and a non-highlight region in the display screen according to the brightness value of the pixel point.
In some embodiments, the first determining unit 302 is specifically configured to determine that a highlight region exists in the display screen if the brightness value of the pixel point is greater than or equal to a preset brightness threshold; taking the pixel points with the brightness values larger than or equal to a preset brightness threshold value as highlight pixel points, and generating highlight areas according to the positions of the highlight pixel points; and taking the pixel points with the brightness values smaller than the preset brightness threshold value as non-highlight pixel points, and generating non-highlight areas according to the positions of the non-highlight pixel points.
In some embodiments, the first determining unit 302 may be specifically configured to use a pixel point with a luminance value greater than or equal to a preset luminance threshold as a highlight pixel point; generating an initial highlight area according to the highlight pixel points; and if the number of the highlight pixel points in the initial highlight area is greater than a preset number threshold, taking the initial highlight area as a highlight area.
(3) A second determination unit 303;
the second determining unit 303 may be configured to determine, according to the highlight area, a brightness adjustment parameter corresponding to a pixel point of the non-highlight area.
In some embodiments, the second determining unit 303 may be specifically configured to determine the width of the highlight region according to the number of the pixels in the highlight region; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the width of the highlight areas.
In some embodiments, the second determining unit 303 may be specifically configured to determine a width of the display screen; determining the width proportion of the highlight area in the display screen according to the width of the highlight area and the width of the display screen; and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the width proportion.
In some embodiments, the second determining unit 303 may be specifically configured to screen out a target parameter set from a preset brightness adjustment parameter set according to a width ratio; and extracting brightness adjusting parameters corresponding to the pixel points of the non-highlight areas from the target parameter set.
(4) A brightness adjustment unit 304;
the brightness adjusting unit 304 may be configured to adjust the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameter.
In some embodiments, the brightness adjusting unit 304 may be specifically configured to determine a target LED chip corresponding to the brightness adjusting parameter in a pixel point of the non-highlight area; and adjusting the brightness of the target LED chip of the pixel point according to the brightness adjusting parameter.
In some embodiments, the brightness adjustment unit 304 may be specifically configured to obtain a reference position where a pixel point in the highlight region is located; determining a target pixel point in the non-highlight area according to the reference position; and determining a target LED chip corresponding to the brightness adjusting parameter in the target pixel point of the non-high brightness area.
The obtaining unit 301 in the embodiment of the present application may be configured to obtain a brightness value of a pixel point in a display screen; the first determining unit 302 may be configured to determine a highlight area in the display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; the second determining unit 303 may be configured to determine, according to the highlight region, a brightness adjustment parameter corresponding to a pixel point in the non-highlight region; the brightness adjusting unit 304 may be configured to adjust the brightness of the pixel points in the non-highlight region according to the brightness adjusting parameter; because this application embodiment can confirm the luminance control parameter that the pixel point that is not the highlight region corresponds according to the highlight region to can carry out luminance control to the pixel point in highlight region according to luminance control parameter, carry out luminance compensation to the pixel point in highlight region according to luminance control parameter fairly, so can improve the homogeneity of display screen luminance.
An embodiment of the present application further provides a computer device, as shown in fig. 6, which shows a schematic structural diagram of the computer device according to the embodiment of the present application, specifically:
the computer device may include components such as a processor 401 of one or more processing cores, memory 402 of one or more computer-readable storage media, a power supply 403, and an input unit 404. Those skilled in the art will appreciate that the computer device configuration illustrated in FIG. 6 does not constitute a limitation of computer devices, and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components. Wherein:
the processor 401 is a control center of the computer device, connects various parts of the entire computer device using various interfaces and lines, and performs various functions of the computer device and processes data by running or executing software programs and/or modules stored in the memory 402 and calling data stored in the memory 402, thereby monitoring the computer device as a whole. Optionally, processor 401 may include one or more processing cores; preferably, the processor 401 may integrate an application processor, which mainly handles operating systems, user interfaces, computer programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 401.
The memory 402 may be used to store software programs and modules, and the processor 401 executes various functional applications and data processing by operating the software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, a computer program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.
The computer device further comprises a power supply 403 for supplying power to the various components, and preferably, the power supply 403 is logically connected to the processor 401 via a power management system, so that functions of managing charging, discharging, and power consumption are implemented via the power management system. The power supply 403 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The computer device may also include an input unit 404, the input unit 404 being operable to receive input numeric or character information communications, and to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
Although not shown, the computer device may further include a display unit and the like, which are not described in detail herein. Specifically, in this embodiment, the processor 401 in the computer device loads the executable file corresponding to the process of one or more computer programs into the memory 402 according to the following instructions, and the processor 401 runs the computer program stored in the memory 402, thereby implementing various functions as follows:
acquiring the brightness value of a pixel point in a display screen; determining a highlight area in a display screen and a non-highlight area in the display screen according to the brightness value of the pixel point; determining brightness adjusting parameters corresponding to pixel points of non-highlight areas according to the highlight areas; and adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjustment parameter.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by a computer program, which may be stored in a computer-readable storage medium and loaded and executed by a processor, or by related hardware controlled by the computer program.
To this end, the present application provides a computer-readable storage medium, in which a computer program is stored, where the computer program can be loaded by a processor to execute any one of the brightness adjustment methods provided in the present application.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the computer-readable storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Since the instructions stored in the computer-readable storage medium can execute the steps in any brightness adjustment method provided in the embodiments of the present application, the beneficial effects that can be achieved by any brightness adjustment method provided in the embodiments of the present application can be achieved, which are detailed in the foregoing embodiments and will not be described again here.
According to an aspect of the application, there is provided, among other things, a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations provided by the embodiments described above.
The foregoing detailed description is directed to a brightness adjustment method, an apparatus, a computer device, and a computer-readable storage medium provided in the embodiments of the present application, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the descriptions of the foregoing embodiments are only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A luminance adjustment method, characterized by comprising:
acquiring the brightness value of a pixel point in a display screen;
determining a highlight area in the display screen and a non-highlight area in the display screen according to the brightness value of the pixel point;
determining brightness adjusting parameters corresponding to pixel points of the non-highlight area according to the highlight area;
and adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameter.
2. The brightness adjustment method according to claim 1, wherein the determining, according to the highlight region, the brightness adjustment parameter corresponding to the pixel point of the non-highlight region comprises:
determining the width of the highlight area according to the number of the pixel points in the highlight area;
and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight area according to the width of the highlight area.
3. The brightness adjustment method according to claim 2, wherein the determining the brightness adjustment parameter corresponding to the pixel point of the non-highlight region according to the width of the highlight region comprises:
determining a width of the display screen;
determining the width ratio of the highlight area to the display screen according to the width of the highlight area and the width of the display screen;
and determining brightness adjusting parameters corresponding to the pixel points of the non-highlight areas according to the width proportion.
4. The brightness adjustment method according to claim 3, wherein the determining the brightness adjustment parameter corresponding to the pixel point of the non-highlight region according to the width ratio comprises:
screening a target brightness adjusting parameter set from a preset brightness adjusting parameter set according to the width proportion;
and extracting brightness adjusting parameters corresponding to the pixel points of the non-highlight area from the target brightness adjusting parameter set.
5. The brightness adjustment method according to claim 1, wherein the adjusting brightness of the pixel points in the non-highlight region according to the brightness adjustment parameter comprises:
determining a target LED chip corresponding to the brightness adjusting parameter in the pixel point of the non-high brightness area;
and adjusting the brightness of the target LED chip of the pixel point according to the brightness adjusting parameter.
6. The method according to claim 5, wherein the determining the target LED chip corresponding to the brightness adjustment parameter in the pixel point of the non-highlight region comprises:
acquiring a reference position where a pixel point is located in the highlight area;
determining a target pixel point in the non-highlight area according to the reference position;
and determining a target LED chip corresponding to the brightness adjusting parameter in the target pixel point of the non-highlight area.
7. The method according to claim 1, wherein the determining a highlight region in the display screen and a non-highlight region in the display screen according to the luminance values of the pixel points comprises:
if the brightness value of the pixel point is larger than or equal to a preset brightness threshold value, determining that a highlight area exists in the display screen;
taking the pixel points with the brightness values larger than or equal to the preset brightness threshold value as highlight pixel points, and generating highlight areas according to the positions of the highlight pixel points;
and taking the pixel points with the brightness values smaller than the preset brightness threshold value as non-highlight pixel points, and generating non-highlight areas according to the positions of the non-highlight pixel points.
8. A luminance adjustment device, characterized by comprising:
the acquisition unit is used for acquiring the brightness value of a pixel point in a display screen;
the first determining unit is used for determining a highlight area in the display screen and a non-highlight area in the display screen according to the brightness value of the pixel point;
the second determining unit is used for determining brightness adjusting parameters corresponding to the pixel points of the non-highlight area according to the highlight area;
and the brightness adjusting unit is used for adjusting the brightness of the pixel points in the non-highlight area according to the brightness adjusting parameter.
9. A computer device comprising a memory and a processor; the memory stores a computer program, and the processor is configured to execute the computer program in the memory to perform the brightness adjustment method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program adapted to be loaded by a processor to perform the brightness adjustment method of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210403468.XA CN115132125A (en) | 2022-04-18 | 2022-04-18 | Brightness adjusting method and device, computer equipment and computer readable storage medium |
| PCT/CN2023/072340 WO2023202173A1 (en) | 2022-04-18 | 2023-01-16 | Brightness adjustment method and apparatus, and computer device and computer-readable storage medium |
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|---|---|---|---|---|
| WO2023202173A1 (en) * | 2022-04-18 | 2023-10-26 | 惠州视维新技术有限公司 | Brightness adjustment method and apparatus, and computer device and computer-readable storage medium |
| WO2024120195A1 (en) * | 2022-12-09 | 2024-06-13 | 武汉华星光电半导体显示技术有限公司 | Display apparatus and data processing method |
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| CN102568383A (en) * | 2012-02-14 | 2012-07-11 | 天津七一二通信广播有限公司 | Method for improving nonuniformity of brightness of OLED (organic light-emitting diode) display panel |
| TWI488165B (en) * | 2013-03-29 | 2015-06-11 | 普誠科技股份有限公司 | Display control method for display device, display control system and display device |
| CN109346000B (en) * | 2018-09-28 | 2020-05-26 | 苏州科达科技股份有限公司 | LED display control method and system and electronic equipment |
| US11694601B2 (en) * | 2019-03-29 | 2023-07-04 | Creeled, Inc. | Active control of light emitting diodes and light emitting diode displays |
| CN110675838B (en) * | 2019-09-27 | 2022-03-25 | Tcl移动通信科技（宁波）有限公司 | Brightness adjusting method and device, computer readable storage medium and terminal |
| CN114220378B (en) * | 2022-01-07 | 2024-01-19 | 惠州视维新技术有限公司 | Shunt circuit of display device and display device |
| CN115132125A (en) * | 2022-04-18 | 2022-09-30 | 惠州视维新技术有限公司 | Brightness adjusting method and device, computer equipment and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023202173A1 (en) * | 2022-04-18 | 2023-10-26 | 惠州视维新技术有限公司 | Brightness adjustment method and apparatus, and computer device and computer-readable storage medium |
| WO2024120195A1 (en) * | 2022-12-09 | 2024-06-13 | 武汉华星光电半导体显示技术有限公司 | Display apparatus and data processing method |
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