CN115171606A - Image adjusting method and device, electronic equipment and storage medium - Google Patents
Image adjusting method and device, electronic equipment and storage medium Download PDFInfo
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- CN115171606A CN115171606A CN202210893967.1A CN202210893967A CN115171606A CN 115171606 A CN115171606 A CN 115171606A CN 202210893967 A CN202210893967 A CN 202210893967A CN 115171606 A CN115171606 A CN 115171606A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The disclosure provides an image adjusting method, an image adjusting device, an electronic device and a storage medium. The method comprises the following steps: determining an initial brightness value, a brightness change value and a significant value of a pixel point of an original image which are obtained in advance according to a display device; determining whether the significance value is greater than a preset significance value threshold value; responding to the fact that the significance value is larger than a preset significance value threshold value, and determining a first adjustment brightness value of the pixel point according to the initial brightness value and the brightness change value; and adjusting the original image according to the first adjustment brightness value of the pixel point to determine an output image. The whole brightness of an original image does not need to be reduced, the driving voltage of an OLED element does not need to be reduced, brightness adjustment is carried out according to the difference of the significant values of the pixel points, and then the image quality is guaranteed while the power consumption is reduced, the service life of a product is prolonged, and the cruising ability is improved.
Description
Technical Field
The present disclosure relates to the field of image processing technologies, and in particular, to an image adjusting method and apparatus, an electronic device, and a storage medium.
Background
In order to reduce the power consumption of an OLED (also referred to as an organic electroluminescent diode) in the related art, the driving voltage of an OLED element is usually reduced to reduce the luminance of the OLED element, thereby reducing the power consumption.
Disclosure of Invention
In view of the above, the present disclosure provides an image adjusting method, an image adjusting apparatus, an electronic device, and a storage medium.
In a first aspect of the present disclosure, an image adjusting method is provided, where the method includes:
determining an initial brightness value, a brightness change value and a significant value of a pixel point of an original image which are obtained in advance according to a display device;
determining whether the significance value is greater than a preset significance threshold value;
responding to the fact that the significance value is larger than the preset significance value threshold value, and determining a first adjusting brightness value of the pixel point according to the initial brightness value and the brightness change value;
and adjusting the original image according to the first adjustment brightness value of the pixel point to determine an output image.
In a possible implementation manner, the determining, according to a display device, an initial brightness value, a brightness change value, and a significant value of a pixel point of an original image acquired in advance includes:
acquiring an initial driving current of the display device, and representing an initial brightness value of a pixel point of a pre-acquired original image according to the initial driving current;
acquiring a central point driving current of the display device and a test driving current of at least one preset point, and determining a brightness change difference value of the pixel point according to an absolute value of a difference value between the central point driving current and the test driving current;
determining the brightness change value according to the ratio of the initial brightness value to the brightness change difference value;
and acquiring the driving parameters of the display device, and determining the significant value of the pixel point according to the driving parameters.
In one possible implementation manner, the driving parameter is at least one of driving power consumption, film thickness and width-to-length ratio of a driving thin film transistor of the display device.
In a possible implementation manner, the determining a first adjusted brightness value of the pixel point according to the initial brightness value and the brightness change value includes:
determining an adjustment proportion according to the brightness change value;
and determining a first adjustment brightness value of the pixel point according to the initial brightness value and the adjustment proportion.
In a possible implementation manner, the determining whether the significance value is greater than a preset significance threshold value further includes:
responding to the fact that the significance value is smaller than or equal to the preset significance value threshold value, and determining the brightness change interval of the pixel point according to the display device;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value, the preset significant value threshold and the brightness change interval.
In a possible implementation manner, the brightness change interval includes: a luminance change maximum value and a luminance change minimum value;
the determining the brightness change interval of the pixel point according to the display device includes:
acquiring rated maximum brightness, maximum driving current and a brightness change difference value of the pixel point of the display device, and determining the maximum brightness change value according to the rated maximum brightness and the maximum driving current;
determining the brightness change minimum value according to the initial brightness value and the brightness change difference value;
and determining the brightness change interval according to the brightness change maximum value and the brightness change minimum value.
In one possible implementation, the minimum value of the brightness variation is 0.02.
In a possible implementation manner, the determining a second adjusted brightness value of the pixel point according to the initial brightness value, the preset significant value threshold, and the brightness change interval includes:
determining the minimum significant value of the pixel point according to the display device;
linearly mapping the minimum significant value and the preset significant value threshold value to the brightness change interval to determine a mapping relation;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value and the mapping relation.
In a possible implementation manner, the determining a second adjusted brightness value of the pixel point according to the initial brightness value, the preset significant value threshold, and the brightness change interval further includes:
and adjusting the original image according to the second adjusted brightness of the pixel points to determine the output image.
In a second aspect of the present disclosure, there is provided an image adjusting apparatus, the apparatus comprising:
the display device comprises a first determining module, a second determining module and a display module, wherein the first determining module is configured to determine an initial brightness value, a brightness change value and a significant value of a pixel point of an original image acquired in advance according to the display device;
a second determination module configured to determine whether the saliency value is greater than a preset saliency value threshold;
a third determining module configured to determine, in response to the significance value being greater than the preset significance threshold value, a first adjusted brightness value of the pixel point according to the initial brightness value and the brightness change value;
an adjusting module configured to adjust the original image according to the first adjusted brightness value of the pixel point to determine an output image.
In a third aspect of the present disclosure, an electronic device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor implements the method of the first aspect when executing the program.
In a fourth aspect of the disclosure, a non-transitory computer-readable storage medium is provided that stores a set of instructions of an electronic device for causing the electronic device to perform the method of the first aspect.
The image adjusting method, the image adjusting device, the electronic device and the storage medium provided by the embodiment of the disclosure determine an original image obtained in advance according to a display device, determine an initial brightness value, a brightness change value and a significant value of a pixel point in the original image, further determine whether the significant value of the pixel point is greater than a preset significant value threshold, and determine a first adjustment brightness value of the pixel point according to the initial brightness value and the brightness change value in response to the significant value of the pixel point being greater than the preset significant value threshold, and then adjust the brightness of the pixel point according to the first adjustment brightness value of the pixel point, so as to determine an adjusted output image by adjusting the brightness of the original image. The whole brightness of an original image does not need to be reduced, the driving voltage of an OLED element does not need to be reduced, brightness adjustment is carried out according to the difference of the significant values of the pixel points, and then the image quality is guaranteed while the power consumption is reduced, the service life of a product is prolonged, and the cruising ability is improved.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the description below are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 illustrates a flowchart of an exemplary method for image adjustment provided by an embodiment of the present disclosure.
Fig. 2 shows an image contrast diagram of luminance change maxima and structural similarity according to an embodiment of the disclosure.
Fig. 3 shows a schematic diagram of a comparison of an original image, a salient image, and a low power consumption image according to an embodiment of the disclosure.
Fig. 4 shows a schematic diagram of an exemplary apparatus for image adjustment provided by an embodiment of the present disclosure.
Fig. 5 shows a schematic structural diagram of an exemplary electronic device provided in an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be understood that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present disclosure should have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
As described in the background section, the lifetime of an OLED (also referred to as an organic electroluminescent diode) is not as long as that of an LCD (also referred to as a liquid crystal display) at present, because a conventional driving method adopts progressive sequential scanning, the lighting time of each line in a frame of image period is short, if the average brightness of the display is to be achieved, the peak luminance of each line of pixels is required to be very high, a high driving voltage is required, the power consumption of the OLED is increased, and then the driving with high brightness easily causes the rapid aging of the OLED device and reduces the lifetime.
The applicant researches and discovers that two ways of reducing OLED power consumption in the related art are available, one of the ways is to adjust the whole pixel brightness of the image to achieve the purpose of reducing the power consumption; and secondly, the driving voltage of the OLED element is reduced, so that the luminous brightness of the OLED element is reduced, and the power consumption is reduced. However, the reduction of the power consumption of the OLED by the above two methods affects the average brightness of the OLED display, and thus has a problem of affecting the image quality.
In view of this, the disclosed embodiments provide an image adjusting method, an image adjusting apparatus, an electronic device, and a storage medium. The method comprises the following steps: determining an initial brightness value, a brightness change value and a significant value of a pixel point of an original image which are obtained in advance according to a display device; determining whether the significance value is greater than a preset significance threshold value; responding to the fact that the significance value is larger than the preset significance value threshold value, and determining a first adjusting brightness value of the pixel point according to the initial brightness value and the brightness change value; and adjusting the original image according to the first adjustment brightness value of the pixel point to determine an output image.
According to the image adjusting method, the image adjusting device, the electronic device and the storage medium, an original image obtained in advance is determined according to a display device, an initial brightness value, a brightness change value and a significant value of a pixel point in the original image are determined, whether the significant value of the pixel point is larger than a preset significant value threshold value or not is further determined, in response to the fact that the significant value of the pixel point is larger than the preset significant value threshold value, a first adjusting brightness value of the pixel point can be determined according to the initial brightness value and the brightness change value, and then the brightness of the pixel point is adjusted according to the first adjusting brightness value of the pixel point, so that the adjusted output image is determined through brightness adjustment of the original image. The whole brightness of an original image does not need to be reduced, the driving voltage of an OLED element does not need to be reduced, brightness adjustment is carried out according to the difference of the significant values of pixel points, and then the image quality is guaranteed while the power consumption is reduced, the service life of a product is prolonged, and the cruising ability is improved.
The following describes an image adjusting method provided in the embodiments of the present application with specific embodiments.
Fig. 1 illustrates a flowchart of an exemplary method for image adjustment provided by an embodiment of the present disclosure.
Referring to fig. 1, an image adjustment method provided in an embodiment of the present application specifically includes the following steps:
s102: and determining the initial brightness value, the brightness change value and the significant value of the pixel point of the original image which is obtained in advance according to the display device.
S104: determining whether the saliency value is greater than a preset saliency value threshold.
S106: and responding to the fact that the significance value is larger than the preset significance value threshold value, and determining a first adjusting brightness value of the pixel point according to the initial brightness value and the brightness change value.
S108: and adjusting the original image according to the first adjustment brightness value of the pixel point to determine an output image.
In this embodiment, in a liquid crystal display scene, different display devices may cause parameter differences between the display devices due to differences in light emitting materials or differences in processing processes and precision, and the brightness and the significance of each pixel point in an original image displayed in the same display device are also different. In weber's law, which indicates that there is a difference between the brightness of an object and the brightness of its surrounding background (e.g., the brightness just noticeable to the human eye), the perceived brightness of the human eye is not simply dependent on the light intensity, but rather emphasizes the contrast of the brightness. In an image, the salient pixel points are more concerned by human eyes, so that the salient values of the pixel points in the original image can be determined according to partial parameters of the display device, and the salient degrees of the pixel points are represented by the salient values, so that the salient pixel points and the non-salient pixel points are distinguished.
Further, since human eyes are more focused on contrast, luminance change within a certain range can be accepted, so that the luminance change value of the pixel point can be determined. It should be noted that, theoretically, the luminance change value of each pixel point in the same display device is the same, because the value can be determined when the display device is designed, and the design value of the value of each pixel point is the same. However, in the actual manufacturing process, due to the influence of factors such as fluctuation of the manufacturing process, the brightness change value of each pixel point may be different, so that multi-point value calculation can be performed, and a plurality of pixel point locations in a certain area are selected according to actual requirements to perform brightness change value calculation, so that the brightness change values of all the pixel points are represented by calculated values. Due to the requirement on the precision, the brightness change value of each pixel point can be calculated for all the pixel points respectively.
The brightness change value of the pixel point can be determined through the brightness change difference value and the initial brightness value of the pixel point, the initial brightness value of any pixel point can be represented by the initial driving current of the OLED, and therefore the initial driving current value of the OLED can be measured, and the initial brightness value of the pixel point can be represented by the initial driving current.
And further, after the OLED is manufactured, the actual brightness value change can be measured and determined through equipment, so that the brightness change difference of the pixel points is determined. For example, the central point driving current of the central point of the display device may be obtained, the test driving current of at least one preset point is measured in a preset measurement point, the luminance change difference of the pixel point is determined according to the absolute value of the difference between the central point driving current and the test driving current, and the calculated luminance change difference corresponds to each pixel point. It should be noted that, when the test driving currents of at least two preset points are measured, all the test driving currents may be averaged, and then the luminance change difference of the pixel point may be determined according to the absolute value of the difference between the driving current of the central point and the average value of the test driving currents.
It should be noted that the luminance change value can be determined according to the ratio of the initial luminance value of the pixel point to the luminance change difference value, and the calculation formula is as follows:
K＝ΔI/I
where K denotes a luminance change value, Δ I denotes a luminance change difference value, and I denotes an initial luminance value.
In some embodiments, in order to distinguish between salient pixel points and non-salient pixel points, the salient value of the pixel point may be further determined according to the driving parameter by obtaining the driving parameter of the display device. The significant value of the pixel point is related to the driving power consumption of the display device, the thickness of the OLED film layer and the width-to-length ratio of the TFT (also called as the width-to-length ratio of the driving thin film transistor, which is expressed as W/L), so that at least one parameter of the driving power consumption of the display device, the thickness of the OLED film layer and the width-to-length ratio of the TFT can be selected to determine the significant value of the pixel point.
In some embodiments, the significant value of the pixel may also be determined by obtaining a YUV value of each pixel in the original image, where the YUV value includes a Y-channel value, a U-channel value, and a V-channel value of a YUV color space, and may also be directly a Y value, a U value, and a V value, where the Y value represents a luminance component of the pixel, and the U value and the V value represent a chrominance component of the pixel, respectively.
Further, a YUV average value Dis may be calculated initial And calculating the YUV average value of each pixel point in the first pixel range and the YUV average value in the second pixel range by taking the YUV average value as the center.
Still further, a difference Dis between the YUV average value of each pixel point within the first pixel range centered on the YUV average value and the YUV average value of each pixel point within the second pixel range centered on the YUV average value may be calculated, and an average difference Dis between each pixel point and other pixel points within the first pixel range centered on the YUV average value may be calculated avr And then calculating to obtain a significant value parameter of each pixel point, wherein the significant value parameter can be expressed as
Dis add ＝(Dis+Dis avr )/Dis initial
Still further, a significance parameter Dis of each pixel point can be determined add The magnitude relation with the first preset threshold α and the second preset threshold β. If the significant parameter Dis of the pixel point add Satisfy Dis add If the value is more than alpha, the significant value of the pixel point can be 1; if the significant parameter Dis of the pixel point add Alpha is more than or equal to Dis add Not less than beta, the significant value of the pixel point can be (Dis) add - β)/α; if the significant parameter Dis of the pixel point add Satisfy Dis add If the value is less than beta, the significant value of the pixel point can be 0.
In this embodiment, whether a pixel is a significant point is determined by determining a magnitude relationship between a significant value of the pixel and a preset significant value threshold. Specifically, it may be determined whether the saliency value of the pixel is greater than a preset saliency threshold, and further, if the saliency value of the pixel is greater than the preset saliency threshold, the pixel is determined to be a saliency pixel. And further, determining an adjustment ratio according to the brightness change value K, and determining a first adjustment brightness value of the pixel point according to the initial brightness value I and the adjustment ratio. The calculation formula is as follows:
I’(i,j)＝(1-K)*I(i,j)，S(i，j)＞S_th
wherein, I' (I, j) represents a first adjustment brightness value of a pixel point with coordinates (I, j), I (I, j) represents an initial brightness value of the pixel point with coordinates (I, j), S (I, j) represents a significant value of the pixel point with coordinates (I, j), S _ th represents a preset significant value threshold, and (1-K) represents an adjustment ratio.
Further, the brightness of the pixel point can be adjusted according to the first adjusted brightness value of the pixel point, so that the original image is adjusted, and the output image after brightness adjustment is finally determined.
In some embodiments, the ratio of the luminance variation difference Δ I to the initial luminance value I has a luminance mapping function relationship, i.e. is expressed as a luminance variation value K, and is kept constant within a certain range, and the luminance variation value K has a minimum value of 0.02. As described above, since the salient pixel points are more concerned by human eyes, the brightness of the salient pixel points can be adjusted only in a small proportion, and the brightness change value K is selected to be the minimum value of 0.02 because human eyes are sensitive to the salient pixel points, so that the adjustment of the original image cannot be perceived by human eyes, and the quality of the output image is ensured.
In some embodiments, when determining whether the saliency value of a pixel is greater than a preset saliency threshold, in response to determining that the saliency value of the pixel is less than or equal to the preset saliency threshold, the pixel is declared to be an insignificant pixel. For the non-significant pixel points, human eyes are insensitive to the brightness change of the non-significant pixel points, so that the brightness change of the non-significant pixel points can be larger than that of the significant pixel points, and the brightness change can be determined according to a display deviceLuminance change interval [ K ] of pixel point min ，K max ]. And then determining a second adjustment brightness value of the non-significant pixel point according to the initial brightness value of the pixel point, the preset significant value threshold and the brightness change interval.
Note that the maximum value K of the luminance change max The maximum brightness variation value K of the current display device can be determined according to the obtained rated maximum brightness and the obtained maximum driving current of the display device max . Further, a minimum value of luminance change, i.e., 0.02, may be determined from the initial luminance value and the luminance change difference value. And further, determining a brightness change interval according to the brightness change minimum value and the brightness change maximum value.
In some embodiments, the minimum significant value of the insignificant pixel point may be determined according to a display device, and then the minimum significant value and a preset significant value threshold are linearly mapped to a luminance change interval, so as to determine a mapping relationship, and a second adjusted luminance value of the insignificant pixel point is determined according to the initial luminance value and the mapping relationship, where the calculation formula is as follows:
I”(i,j)＝[1-(Kmax-Kmin)*S(i,j)
/(Smin-S_th)-Kmin+(Kmax-Kmin)*S_th/(Smin-S_th)]*I(i,j),S(I,j)≤S_th
where I "(I, j) represents the second adjusted luminance value and Smin represents the minimum significant value.
After the second adjustment brightness value is determined, the brightness of the pixel point can be adjusted according to the second adjustment brightness value of the pixel point, and then the brightness of the original image is adjusted to determine an output image, so that the brightness adjustment of the non-significant pixel point is realized, and the quality of the output image is further ensured.
Fig. 2 shows an image contrast diagram of luminance change maxima and structural similarity according to an embodiment of the disclosure.
In some embodiments, experiments show that when the maximum value of the brightness change is large, more power consumption can be saved, but the quality of the adjusted output image is poor, and the normal display effect is affected, so that when the maximum value of the brightness change is determined, the power consumption is reduced while the image display quality is ensured. Based on the structural similarity theory SSIM (structural similarity index measurement), image quality is mainly judged by comparing the contrast and structural information of reference images, and the closer the SSIM is to 1, the closer the two images are. By using the theory, the pixel brightness values of different areas of the actual OLED can be taken through a display device for simulation, and through a simulation test and referring to fig. 2, according to the change trend of the relationship between the SSIM value of the relevant image and the maximum brightness change value, it can be judged that when the SSIM value is maintained at about 0.95, higher image quality can be ensured, so the maximum brightness change value in this embodiment can be taken as 0.25.
Fig. 3 shows a schematic diagram of a comparison of an original image, a salient image, and a low power consumption image according to an embodiment of the disclosure.
Referring to fig. 3, it can be seen from the simulation effect graph obtained through a simulation experiment that, compared with the original image, the rightmost low-power-consumption image in the graph is the final output image determined by the image adjustment method provided in the embodiment of the present application, and while the image quality is ensured, the power consumption can be reduced by about 10%, and the power consumption of the display device is effectively reduced.
As described above, according to the image adjusting method, the image adjusting device, the electronic device, and the storage medium provided in the embodiments of the present disclosure, the original image obtained in advance is determined according to the display device, the initial brightness value, the brightness change value, and the significant value of the pixel point in the original image are determined, it is further determined whether the significant value of the pixel point is greater than the preset significant value threshold, and in response to that the significant value of the pixel point is greater than the preset significant value threshold, the first adjustment brightness value of the pixel point may be determined according to the initial brightness value and the brightness change value, and then the brightness of the pixel point is adjusted according to the first adjustment brightness value of the pixel point, so as to determine the adjusted output image through brightness adjustment of the original image. The whole brightness of an original image does not need to be reduced, the driving voltage of an OLED element does not need to be reduced, brightness adjustment is carried out according to the difference of the significant values of pixel points, and then the image quality is guaranteed while the power consumption is reduced, the service life of a product is prolonged, and the cruising ability is improved.
It will be appreciated by those skilled in the art that although the above description is based on an emulation program of a logic system, the methods and apparatus provided by the present disclosure may also be used to debug other types of programs.
It should be noted that the method of the present disclosure may be executed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene and completed by the mutual cooperation of a plurality of devices. In the case of such a distributed scenario, one of the plurality of devices may only perform one or more steps of the method of the present disclosure, and the plurality of devices may interact with each other to complete the method.
Fig. 4 shows an exemplary structural diagram of an image adjusting apparatus provided in an embodiment of the present application.
Based on the same inventive concept, the application also provides an image adjusting device corresponding to the method of any embodiment.
Referring to fig. 4, the image adjusting apparatus includes: the device comprises a first determining module, a second determining module, a third determining module and an adjusting module; wherein the content of the first and second substances,
the display device comprises a first determining module, a second determining module and a display module, wherein the first determining module is configured to determine an initial brightness value, a brightness change value and a significant value of a pixel point of an original image acquired in advance according to the display device;
a second determination module configured to determine whether the saliency value is greater than a preset saliency value threshold;
a third determining module configured to determine a first adjusted brightness value of the pixel point according to the initial brightness value and the brightness change value in response to the significance value being greater than the preset significance threshold value;
an adjusting module configured to adjust the original image according to the first adjusted brightness value of the pixel point to determine an output image.
In one possible implementation, the first determining module is further configured to:
acquiring an initial driving current of the display device, and representing an initial brightness value of a pixel point of an original image acquired in advance according to the initial driving current;
acquiring a central point driving current of the display device and a test driving current of at least one preset point, and determining a brightness change difference value of the pixel point according to an absolute value of a difference value between the central point driving current and the test driving current;
determining the brightness change value according to the ratio of the initial brightness value to the brightness change difference value;
and acquiring the driving parameters of the display device, and determining the significant value of the pixel point according to the driving parameters.
In one possible implementation, the third determining module is further configured to:
determining an adjustment proportion according to the brightness change value;
and determining a first adjustment brightness value of the pixel point according to the initial brightness value and the adjustment proportion.
In one possible implementation, the third determining module is further configured to:
responding to the fact that the significance value is smaller than or equal to the preset significance value threshold value, and determining the brightness change interval of the pixel point according to the display device;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value, the preset significant value threshold and the brightness change interval.
In a possible implementation manner, the brightness change section includes: a luminance change maximum value and a luminance change minimum value;
the third determination module is further configured to:
acquiring rated maximum brightness, maximum driving current and a brightness change difference value of the pixel point of the display device, and determining the maximum brightness change value according to the rated maximum brightness and the maximum driving current;
determining the brightness change minimum value according to the initial brightness value and the brightness change difference value;
and determining the brightness change interval according to the brightness change maximum value and the brightness change minimum value.
In one possible implementation, the third determining module is further configured to:
determining the minimum significant value of the pixel point according to the display device;
linearly mapping the minimum significant value and the preset significant value threshold value to the brightness change interval to determine a mapping relation;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value and the mapping relation.
In one possible implementation, the adjusting module is further configured to:
and adjusting the original image according to the second adjusted brightness of the pixel point to determine the output image.
For convenience of description, the above system is described with the functions divided into various modules, which are described separately. Of course, the functionality of the various modules may be implemented in the same one or more software and/or hardware implementations as the present application.
The system of the foregoing embodiment is used to implement the corresponding image adjustment method in any one of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
Fig. 5 shows an exemplary structural schematic diagram of an electronic device provided in an embodiment of the present application.
Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the program, the image adjusting method of any of the above embodiments is implemented. Fig. 5 is a schematic diagram illustrating a more specific hardware structure of an electronic device according to this embodiment, where the device may include: a processor 510, a memory 520, an input/output interface 530, a communication interface 540, and a bus 550. Wherein processor 510, memory 520, input/output interface 530, and communication interface 540 are communicatively coupled to each other within the device via bus 550.
The processor 510 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solutions provided in the embodiments of the present specification.
The Memory 520 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, or the like. The memory 520 may store an operating system and other application programs, and when the technical solution provided by the embodiments of the present specification is implemented by software or firmware, the relevant program codes are stored in the memory 520 and called by the processor 510 for execution.
The input/output interface 530 is used for connecting an input/output module to realize information input and output. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide a corresponding function. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various sensors, etc., and the output devices may include a display, speaker, vibrator, indicator light, etc.
The communication interface 540 is used for connecting a communication module (not shown in the figure) to realize communication interaction between the device and other devices. The communication module can realize communication in a wired mode (such as USB, network cable and the like) and also can realize communication in a wireless mode (such as mobile network, WIFI, bluetooth and the like).
It should be noted that although the above-mentioned device only shows the processor 510, the memory 520, the input/output interface 530, the communication interface 540 and the bus 550, in a specific implementation, the device may also include other components necessary for normal operation. In addition, those skilled in the art will appreciate that the above-described apparatus may also include only those components necessary to implement the embodiments of the present description, and not necessarily all of the components shown in the figures.
The electronic device of the above embodiment is used to implement the corresponding image adjusting method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
Based on the same inventive concept, corresponding to any of the above embodiments methods, the present application also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the image adjusting method according to any of the above embodiments.
Computer-readable media of the present embodiments, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
The computer instructions stored in the storage medium of the foregoing embodiment are used to enable the computer to execute the image adjusting method according to any one of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which are not described herein again.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the context of the present application, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown in the provided figures for simplicity of illustration and discussion, and so as not to obscure the embodiments of the application. Further, devices may be shown in block diagram form in order to avoid obscuring embodiments of the application, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the application are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that the embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures, such as Dynamic RAM (DRAM), may use the discussed embodiments.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present application are intended to be included within the scope of the present application.
Claims (12)
1. An image adjustment method, the method comprising:
determining an initial brightness value, a brightness change value and a significant value of a pixel point of an original image which are obtained in advance according to a display device;
determining whether the significance value is greater than a preset significance threshold value;
responding to the fact that the significance value is larger than the preset significance value threshold value, and determining a first adjusting brightness value of the pixel point according to the initial brightness value and the brightness change value;
and adjusting the original image according to the first adjustment brightness value of the pixel point to determine an output image.
2. The method according to claim 1, wherein the determining of the initial brightness value, the brightness change value and the significance value of the pixel point of the pre-acquired original image according to the display device comprises:
acquiring an initial driving current of the display device, and representing an initial brightness value of a pixel point of a pre-acquired original image according to the initial driving current;
acquiring a central point driving current of the display device and a test driving current of at least one preset point, and determining a brightness change difference value of the pixel point according to an absolute value of a difference value between the central point driving current and the test driving current;
determining the brightness change value according to the ratio of the initial brightness value to the brightness change difference value;
and acquiring the driving parameters of the display device, and determining the significant value of the pixel point according to the driving parameters.
3. The method of claim 2, wherein the driving parameter is at least one of driving power consumption, film thickness and driving thin film transistor width to length ratio of the display device.
4. The method of claim 1, wherein said determining a first adjusted luminance value for said pixel based on said initial luminance value and said luminance change value comprises:
determining an adjustment proportion according to the brightness change value;
and determining a first adjustment brightness value of the pixel point according to the initial brightness value and the adjustment proportion.
5. The method of claim 1, wherein determining whether the significance value is greater than a preset significance threshold value further comprises:
responding to the fact that the significance value is smaller than or equal to the preset significance value threshold value, and determining the brightness change interval of the pixel point according to the display device;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value, the preset significant value threshold and the brightness change interval.
6. The method of claim 5, wherein the brightness change interval comprises: a luminance change maximum value and a luminance change minimum value;
the determining the brightness change interval of the pixel point according to the display device includes:
acquiring rated maximum brightness, maximum driving current and a brightness change difference value of the pixel point of the display device, and determining the maximum brightness change value according to the rated maximum brightness and the maximum driving current;
determining the brightness change minimum value according to the initial brightness value and the brightness change difference value;
and determining the brightness change interval according to the brightness change maximum value and the brightness change minimum value.
7. The method of claim 6, wherein the minimum brightness change value is 0.02.
8. The method of claim 5, wherein the determining a second adjusted brightness value of the pixel according to the initial brightness value, the preset significance threshold and the brightness change interval comprises:
determining the minimum significant value of the pixel point according to the display device;
linearly mapping the minimum significant value and the preset significant value threshold value to the brightness change interval to determine a mapping relation;
and determining a second adjustment brightness value of the pixel point according to the initial brightness value and the mapping relation.
9. The method of claim 5, wherein determining a second adjusted brightness value of the pixel point according to the initial brightness value, the preset significance threshold and the brightness change interval further comprises:
and adjusting the original image according to the second adjusted brightness of the pixel point to determine the output image.
10. An image adjusting apparatus, characterized in that the apparatus comprises:
the display device comprises a first determining module, a second determining module and a display module, wherein the first determining module is configured to determine an initial brightness value, a brightness change value and a significant value of a pixel point of an original image acquired in advance according to the display device;
a second determination module configured to determine whether the saliency value is greater than a preset saliency value threshold;
a third determining module configured to determine, in response to the significance value being greater than the preset significance threshold value, a first adjusted brightness value of the pixel point according to the initial brightness value and the brightness change value;
an adjusting module configured to adjust the original image according to the first adjusted brightness value of the pixel point to determine an output image.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 9 when executing the program.
12. A non-transitory computer-readable storage medium storing a set of instructions for an electronic device to cause the electronic device to perform the method of any one of claims 1-9.
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| CN202210893967.1A CN115171606A (en) | 2022-07-27 | 2022-07-27 | Image adjusting method and device, electronic equipment and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117198220A (en) * | 2023-11-07 | 2023-12-08 | 惠科股份有限公司 | Driving method and device of display panel, display module and electronic equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117198220A (en) * | 2023-11-07 | 2023-12-08 | 惠科股份有限公司 | Driving method and device of display panel, display module and electronic equipment |
| CN117198220B (en) * | 2023-11-07 | 2024-01-12 | 惠科股份有限公司 | Driving method and device of display panel, display module and electronic equipment |
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