CN110969995B - Display method and device, electronic equipment and readable storage medium - Google Patents
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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 by control of light from an independent source
- G09G3/3406—Control of illumination source
Abstract
The application provides a display method, comprising: acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image; determining the highest gray scale brightness value according to the brightness distribution information; comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result; an optimal backlight value is determined according to the comparison result so as to adjust the backlight, and an optimal highest gray-scale luminance value is determined according to the comparison result so as to realize pixel enhancement. According to the method and the device, when the backlight value is dynamically adjusted to reduce energy consumption, pixel enhancement processing is carried out on the video frame image, pixel compensation is carried out, the effect of improving the display effect of the video frame image is achieved while the energy consumption is reduced, and the method and the device are simple and efficient to operate. The application also provides a display device, an electronic device and a computer readable storage medium, which all have the beneficial effects.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display method, a display device, an electronic device, and a computer-readable storage medium.
Background
The most popular display technology currently belongs to the liquid crystal display technology. The liquid crystal display module is an important component of the liquid crystal display screen, and the liquid crystal display module mainly comprises a backlight source and a liquid crystal panel. The liquid crystal panel has no self-luminous characteristic, the light transmission of different parts on the liquid crystal panel is different under the action of image signal voltage, each frame of image is equivalent to a cinematographic film, and the image can be seen only by illumination. Therefore, there is typically a backlight source (e.g., a cold cathode fluorescent lamp CCFL, the most widely used type of backlight today is LED) behind the liquid crystal panel. The energy consumption of the liquid crystal display screen is mainly consumed on a power supply system, a signal processing circuit, a liquid crystal driving circuit and a backlight circuit system. Among them, the backlight circuitry consumes the most power, which is about 80% of the total power, so that the power consumption of the display device is reduced from the backlight circuitry.
In order to reduce the power consumption, the backlight is basically adjusted dynamically at present. The existing dynamic backlight technology generally changes the backlight value of the display device dynamically according to the content of the image, thereby achieving the purpose of reducing energy consumption. However, simply reducing the backlight value of the display device may result in the problem that the display effect of the image is lost, such as the image becomes darker.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a display method, a display device, an electronic device and a computer-readable storage medium, which can perform pixel enhancement processing on a video frame image and perform pixel compensation while dynamically adjusting a backlight value to reduce energy consumption, improve the display effect of the video frame image while reducing energy consumption, and are simple and efficient to operate. The specific scheme is as follows:
the application provides a display method, comprising:
acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image;
determining the highest gray scale brightness value according to the brightness distribution information;
comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result;
and determining an optimal backlight value according to the comparison result so that the backlight control module adjusts backlight, and determining an optimal highest gray scale brightness value according to the comparison result so that the pixel enhancement module realizes pixel enhancement.
Optionally, the obtaining and analyzing the video frame image to obtain video frame image information includes:
acquiring the video frame image;
analyzing the video frame image to obtain a brightness distribution histogram of gray scale brightness values of the video frame image;
and removing the distribution information smaller than a preset proportion in the brightness distribution histogram according to the descending order of the gray scale brightness values to obtain the brightness distribution information.
Optionally, the determining an optimal backlight value according to the comparison result so as to adjust the backlight, and determining an optimal highest gray-scale brightness value according to the comparison result so as to realize pixel enhancement includes:
when the highest gray scale brightness value is equal to the maximum gray scale brightness value, determining that the optimal backlight value of the video frame image is a reference backlight value and the optimal highest gray scale brightness value of the video frame image is the highest gray scale brightness value;
sending the reference backlight value to a backlight control module so that the backlight control module can adjust backlight;
and sending the highest gray scale brightness value to a pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
Optionally, the determining an optimal backlight value according to the comparison result so as to adjust the backlight, and determining an optimal highest gray-scale brightness value according to the comparison result so as to realize pixel enhancement includes:
when the highest gray scale brightness value is smaller than the maximum gray scale brightness value, determining a target brightness value in a preset backlight value-gray scale brightness value-brightness value table by using the highest gray scale brightness value and a reference backlight value;
comparing brightness values in a preset backlight value-gray scale brightness value-brightness value table according to a preset direction by taking the target brightness value as a center, and determining a first new brightness value smaller than the target brightness value;
determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest gray scale brightness value;
sending the optimal backlight value to a backlight control module so that the backlight control module can adjust backlight;
and sending the optimal highest gray scale brightness value to a pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
Optionally, before obtaining and analyzing the video frame image to obtain the video frame image information, the method further includes:
and measuring and obtaining a preset backlight value-gray scale brightness value-brightness value table of the target display equipment.
Optionally, the preset backlight value-gray scale brightness value-brightness value table is a 16 × 16 table.
The application provides a display device, including:
the acquisition and analysis module is used for acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image;
the highest gray scale brightness value determining module is used for determining the highest gray scale brightness value according to the brightness distribution information;
the comparison module is used for comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result;
and the execution module is used for determining an optimal backlight value according to the comparison result so as to adjust backlight, and determining an optimal highest gray scale brightness value according to the comparison result so as to realize pixel enhancement.
Optionally, the obtaining and analyzing module includes:
an acquisition unit configured to acquire the video frame image;
a luminance distribution histogram obtaining unit configured to analyze the video frame image to obtain a luminance distribution histogram of a gray-scale luminance value of the video frame image;
and the removing unit is used for removing the distribution information which is smaller than the preset proportion in the brightness distribution histogram according to the sequence of the gray scale brightness values from large to small to obtain the brightness distribution information.
Optionally, the execution module includes:
a first determining unit, configured to determine that the optimal backlight value of the video frame image is a reference backlight value and the optimal maximum gray-scale luminance value of the video frame image is the maximum gray-scale luminance value when the maximum gray-scale luminance value is equal to the maximum gray-scale luminance value;
the first sending unit is used for sending the reference backlight value to a backlight control module so that the backlight control module can adjust backlight;
and the second sending unit is used for sending the highest gray scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
Optionally, the execution module includes:
a second determining unit, configured to determine a target luminance value in a preset backlight value-gray scale luminance value-luminance value table by using the highest gray scale luminance value and a reference backlight value when the highest gray scale luminance value is smaller than the maximum gray scale luminance value;
a third determining unit, configured to compare luminance values in a preset backlight value-gray scale luminance value-luminance value table according to a preset direction with the target luminance value as a center, and determine a first new luminance value smaller than the target luminance value;
a fourth determining unit, configured to determine the backlight value and the gray-scale brightness value corresponding to the new brightness value as an optimal backlight value and an optimal highest gray-scale brightness value;
a third sending unit, configured to send the optimal backlight value to a backlight control module, so that the backlight control module adjusts backlight;
and the fourth sending unit is used for sending the optimal highest gray scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
Optionally, the method further includes:
and the reading module is used for measuring and obtaining a preset backlight value-gray scale brightness value-brightness value table of the target display equipment.
The application provides an electronic device, including:
a memory for storing a computer program;
a processor for implementing the steps of the display method as described above when executing the computer program.
The present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the display method as described above.
The application provides a display method, comprising: acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image; determining the highest gray scale brightness value according to the brightness distribution information; comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result; an optimal backlight value is determined according to the comparison result so as to adjust the backlight, and an optimal highest gray-scale luminance value is determined according to the comparison result so as to realize pixel enhancement.
Therefore, the highest gray scale brightness value is determined through the brightness distribution information of the video frame image, the highest gray scale brightness value is compared with the maximum gray scale brightness value to obtain a comparison result, and the optimal backlight value and the optimal highest gray scale brightness value are determined, so that the video frame image is subjected to pixel enhancement processing and pixel compensation while the backlight value is dynamically adjusted to reduce energy consumption, the display effect of the video frame image is improved while the energy consumption is reduced, and the method is simple and efficient to operate. The application also provides a display device, an electronic device and a computer readable storage medium, all having the above beneficial effects, which are not described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a display method according to an embodiment of the present disclosure;
fig. 2 is a representation of a luminance distribution histogram according to an embodiment of the present disclosure;
FIG. 3 is a flow chart of another display method provided by an embodiment of the present application;
FIG. 4 is a flow chart of another display method provided by the embodiments of the present application;
fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all 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 existing dynamic backlight technology generally changes the backlight value of the display device dynamically according to the content of the image, thereby achieving the purpose of reducing energy consumption. However, simply reducing the backlight value of the display device may result in the problem that the display effect of the image is lost, such as the image becomes darker. Based on the foregoing technical problem, this embodiment provides a display method, where a highest grayscale brightness value is determined according to brightness distribution information of a video frame image, and the highest grayscale brightness value is compared with a grayscale brightness maximum value to obtain a comparison result, so as to determine an optimal backlight value and an optimal highest grayscale brightness value, so that when the backlight value is dynamically adjusted to reduce energy consumption, pixel enhancement processing is performed on the video frame image, and pixel compensation is performed, so as to achieve the purpose of improving a display effect of the video frame image while reducing energy consumption, and the operation is simple and efficient, specifically referring to fig. 1, where fig. 1 is a flowchart of a display method provided in an embodiment of the present application, specifically including:
s101, obtaining and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image.
And S102, determining the highest gray scale brightness value according to the brightness distribution information.
The present application is directed to a liquid crystal display device, and a brightness value output by a general liquid crystal display can be represented by the following formula: l ═ f (data) k (BL), where L denotes the output luminance value, data denotes the luminance of the image pixel, BL is the corresponding backlight value, f is the function of the pixel data level as a function of the light transmittance, and k is the function of the backlight value as a function of the backlight luminance. By the formula, the brightness value output by the liquid crystal display screen is not only related to the backlight value, but also related to the image pixel data level. Therefore, the present application provides a display method, which on one hand, dynamically adjusts the backlight value of the display device according to the video frame image in a self-adaptive manner, and at the same time, performs a certain compensation on the image pixels, so that the effect of the image finally presented on the display screen, especially the visual brightness, is better ensured while the energy consumption is reduced.
In an implementation, acquiring and parsing a video frame image to obtain video frame image information includes: acquiring a video frame image; analyzing the video frame image to obtain a brightness distribution histogram of gray scale brightness values of the video frame image; according to the sequence of the gray scale brightness values from large to small, removing the distribution information smaller than the preset proportion in the brightness distribution histogram to obtain the brightness distribution information.
As shown in fig. 2, fig. 2 is a representation of the luminance distribution histogram provided in the embodiment of the present application, and 5% of pixels are discarded from the rightmost side of the luminance distribution histogram from large to small according to the luminance distribution histogram. Of course, the ratio of discarding may be adjusted as necessary, and the luminance distribution information may be obtained at this time. By the method, parameters can be properly adjusted according to requirements in practical application, and the optimal effect is achieved.
In this embodiment, for consecutive video frame images, processing is performed for each video frame image, so that the finally output consecutive video frame images are consecutive video frame images for which backlight adjustment and pixel compensation are performed. The video frame image information includes luminance distribution information of gray-scale luminance values of the video frame image, and it is understood that the gray-scale luminance values, for example, 8 bits, black is 0, and white is a maximum gray-scale luminance value, that is, 255, and the gray-scale luminance values can be divided into 16 levels, that is, including: 15. 31, 47, 63, 79, 95, 111, 127, 143, 159, 175, 191, 207, 223, 239, and 255 may be divided into 32 steps, and a user may set the gray-scale luminance values in a customized manner to know that each gray-scale luminance value corresponds to a plurality of pixel points. In an implementation manner, according to the order from large to small of the gray-scale brightness values, the distribution information smaller than a preset ratio in the brightness distribution histogram is removed to obtain the brightness distribution information, where the preset ratio may be any one of 1%, 2%, 5%, 8%, and 10%, or may be a user-defined setting.
Of course, 10 bits and 12 bits may also be used, wherein the maximum value of the grayscale brightness corresponding to 10 bits is 1023, and the maximum value of the grayscale brightness corresponding to 12 bits is 4095, which is not described in detail in this embodiment, and reference may be made to 8 bits.
For example, when the content of the pixel point corresponding to the gray-scale brightness value 15 is 4%, the content of the pixel point corresponding to the gray-scale brightness value 31 is 4%, the content of the pixel point corresponding to the gray-scale brightness value 47 is 5%, the content of the pixel point corresponding to the gray-scale brightness value 63 is 6%, the content of the pixel point corresponding to the gray-scale brightness value 79 is 7%, the content of the pixel point corresponding to the gray-scale brightness value 95 is 8%, the content of the pixel point corresponding to the gray-scale brightness value 111 is 11%, the content of the pixel point corresponding to the gray-scale brightness value 127 is 13%, the content of the pixel point corresponding to the gray-scale brightness value 143 is 9%, the content of the pixel point corresponding to the gray-scale brightness value 159 is 8%, the content of the pixel point corresponding to the gray-scale brightness value 175 is 6%, the content of the pixel point corresponding, The content of the pixel point corresponding to the maximum value 255 of the gray scale brightness is 1.5%. In an implementation manner, the luminance distribution information includes content information of the pixel points corresponding to all the gray-scale luminance values, and it is determined that the highest gray-scale luminance value is the maximum gray-scale luminance value at this time. Removing the distribution information smaller than the preset ratio in the brightness information in the descending order to obtain the brightness distribution information, for example, when the preset ratio is 2%, in an achievable embodiment, 1.5% corresponding to 255 may be removed, and then the highest grayscale brightness value is 239; in another implementation, it is possible to remove 1.5% corresponding to 255 and 0.5% of 3.5% corresponding to 239, when 239 corresponds to 3%, and then the highest grayscale brightness value is 239.
S103, comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result.
The comparison result comprises two results that the highest gray scale brightness value is equal to the maximum gray scale brightness value and the highest gray scale brightness value is smaller than the maximum gray scale brightness value. The maximum value of gray-scale brightness is the maximum value of gray-scale brightness corresponding to a preset format, for example, the maximum value of gray-scale brightness corresponding to 8 bits is 255, the maximum value of gray-scale brightness corresponding to 10 bits is 1023, and the maximum value of gray-scale brightness corresponding to 12 bits is 4095.
And S104, determining the optimal backlight value according to the comparison result so as to adjust the backlight, and determining the optimal highest gray scale brightness value according to the comparison result so as to realize pixel enhancement.
And meanwhile, the optimal highest gray scale brightness value is determined according to the comparison result and is sent to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
Based on the above technical solution, in this embodiment, the highest gray-scale brightness value is determined according to the brightness distribution information of the video frame image, the highest gray-scale brightness value is compared with the maximum gray-scale brightness value to obtain a comparison result, and the optimal backlight value and the optimal highest gray-scale brightness value are determined, so that the video frame image is subjected to pixel enhancement processing and pixel compensation while the backlight value is dynamically adjusted to reduce energy consumption, and the display effect of the video frame image is improved while the energy consumption is reduced.
Based on the foregoing embodiments, please refer to fig. 3, where fig. 3 is another display method provided in the embodiments of the present application, including:
s201, obtaining and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image.
S202, determining the highest gray scale brightness value according to the brightness distribution information.
S203, comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result.
S204, when the highest gray-scale brightness value is equal to the maximum gray-scale brightness value, determining that the optimal backlight value of the video frame image is a reference backlight value and the optimal highest gray-scale brightness value of the video frame image is the highest gray-scale brightness value.
When the highest gray-scale luminance value L _ Max _ Org is the maximum gray-scale luminance value, the optimal Backlight value Level _ Backlight _ New is equal to the reference Backlight value Level _ Backlight _ Org, and the optimal highest gray-scale luminance value L _ Max _ New is equal to the highest gray-scale luminance value L _ Max _ Org. The reference backlight value is determined according to the performance parameters of the current display equipment, and it can be understood that when the performance of the display equipment is good and the display picture quality is high, the reference backlight value is set to be small, so that more energy is saved; when the performance of the display device is poor, the set reference backlight value is high, and the energy-saving effect is low.
And S205, sending the reference backlight value to the backlight control module so that the backlight control module adjusts the backlight.
S206, sending the highest gray-scale brightness value to the pixel enhancement module so that the pixel enhancement module can achieve pixel enhancement.
It can be understood that, when the highest grayscale brightness value is equal to the grayscale brightness maximum value, the corresponding pixel enhancement factor is 1, and the operation of pixel enhancement performed by the pixel enhancement module is an operation with an enhancement factor of 1, that is, an operation that remains unchanged.
Based on the above technical solution, in this embodiment, when the backlight value is dynamically adjusted to reduce energy consumption, and when the highest grayscale brightness value is equal to the maximum grayscale brightness value, it is determined that the optimal backlight value of the video frame image is the reference backlight value and the optimal highest grayscale brightness value of the video frame image is the highest grayscale brightness value, so as to implement pixel compensation, and improve the display effect of the video frame image while reducing energy consumption, and the operation is simple and efficient.
Based on the foregoing embodiments, please refer to fig. 4, where fig. 4 is another display method provided in the embodiments of the present application, including:
s301, obtaining and analyzing the video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image.
S302, determining the highest gray scale brightness value according to the brightness distribution information.
S303, comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result.
Please refer to the above embodiments specifically, which will not be described in detail in this embodiment.
S304, when the highest gray scale brightness value is smaller than the maximum gray scale brightness value, determining a target brightness value in a preset backlight value-gray scale brightness value-brightness value table by using the highest gray scale brightness value and a reference backlight value.
S305, taking the target brightness value as a center, comparing brightness values in a preset backlight value-gray scale brightness value-brightness value table, and determining a first new brightness value smaller than the target brightness value.
S306, determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest gray scale brightness value.
In an implementation manner, before obtaining and parsing the video frame image and obtaining the video frame image information, the method further includes: and measuring and obtaining a preset backlight value-gray scale brightness value-brightness value table of the target display equipment.
The preset backlight value-gray scale brightness value-brightness value table, namely T _ Panel, includes a plurality of backlight values and brightness values corresponding to the gray scale brightness values, and respectively adjusts the display gray scale brightness value level (for example, 8 bits represents, black is 0, and white is the maximum value 255 of the gray scale brightness), and the backlight value of the display device (for example, PWM duty value adopting pulse width modulation); and testing by using a brightness tester to obtain a brightness table T _ panel of the display screen.
As in table 1, a preset backlight value-gray level brightness value-brightness value table is used, wherein the backlight value (pwm duty) is divided into 16 steps, the gray level brightness value (pattern level) is also divided into 16 steps, and a 16 × 16 table is obtained, and the corresponding B1-Q16 are measured brightness values with unit of nit; if necessary, a table of 32 x 32 can be made, and the result is more refined.
TABLE 1 Preset backlight value-Gray-luminance value Table
And when the highest gray scale brightness value is smaller than the maximum gray scale brightness value 255, determining a target brightness value in a preset backlight value-gray scale brightness value-brightness value table by using the highest gray scale brightness value and the reference backlight value. For example, when the highest gray-scale Luminance value L _ Max _ Org is 207 and the reference Backlight value Level _ Backlight _ Org is 240, it is determined that the target Luminance _ Org in table 1 is N15, and then Luminance value comparison is performed in the preset Backlight value-gray-scale Luminance value-Luminance value table centering on the target Luminance value N15 to determine the first new Luminance value smaller than the target Luminance value.
Specifically, the target brightness value may be used as a center, the backlight value is unchanged, the brightness values of each brightness value and the target brightness value are sequentially determined according to the sequence of the gray scale brightness values from high to low, a first new brightness value smaller than the target brightness value is obtained, and then the corresponding backlight value and the corresponding gray scale brightness value are obtained according to the brightness value; if the first brightness value smaller than the target brightness does not exist, the first target backlight value smaller than the target brightness is selected to ensure that the backlight value is unchanged, the brightness values and the target brightness value are sequentially determined according to the sequence of the gray scale brightness values from high to low to obtain a first new brightness value smaller than the target brightness value, and then the corresponding backlight value and the gray scale brightness value are obtained according to the brightness values.
In an implementation manner, when the target brightness value is N15, the magnitudes of Q14, Q13, Q12, Q11, Q10, Q9, Q8, Q7, Q6, Q5, Q4, Q3, Q2, Q1 and N15 may be sequentially compared, if the magnitudes exist, a first new brightness value smaller than the target brightness value is determined, and the backlight value and the gray scale brightness value corresponding to the new brightness value are determined as the optimal backlight value and the optimal highest gray scale brightness value; if the first new brightness value smaller than the target brightness value does not exist, sequentially comparing P14, P13, P12, P11, P10, P9, P8, P7, P6, P5, P4, P3, P2, P1 and N15, if so, determining a first new brightness value smaller than the target brightness value, determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest brightness value, if the first new brightness value smaller than the target brightness value does not exist, sequentially comparing O14, O13, O12, O11, O10, O9, O8, O7, O6, O5, O4, O3, O2, O1 and N15 until the first new brightness value smaller than the target brightness value is determined.
In another practical implementation, in order to avoid too low backlight value reduction, a lowest backlight threshold may be set, for example, to 64, when the target luminance value is N15, the magnitudes of Q14, Q13, Q12, Q11, Q10, Q9, Q8, Q7, Q6, Q5, Q4 and N15 may be sequentially compared, if any, a first new luminance value smaller than the target luminance value is determined, and the backlight value and the gray-scale luminance value corresponding to the new luminance value are determined as the optimal backlight value and the optimal gray-scale luminance value; if no new brightness value smaller than the target brightness value exists, sequentially comparing P14, P13, P12, P11, P10, P9, P8, P7, P6, P5, P4 and N15, if so, determining a first new brightness value smaller than the target brightness value, determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest gray scale brightness value, and if no new brightness value smaller than the target brightness value exists, sequentially comparing O14, O13, O12, O11, O10, O9, O8, O7, O6, O5, O4 and N15 until determining a first new brightness value smaller than the target brightness value.
In another practical implementation, when the target brightness value is N15, the magnitudes of M15, L15, K15, J15, I15, H15, G15, F15, E15, D15, C15, B15 and N15 may be sequentially compared, if present, a first new brightness value smaller than the target brightness value is determined, the backlight value and the gray scale brightness value corresponding to the new brightness value are determined as the optimal backlight value and the optimal highest brightness value, if there is no new brightness value smaller than the target brightness value, then M14, L14, L14, J14, I14, H14, G14, F14, E14, D14, C14, B14, a14 and N15 are sequentially compared, until there is a first new brightness value smaller than the target brightness value, it is understood that the above-mentioned manner of determining the first preset brightness value smaller than the preset brightness value is performed in a column manner, and certainly the manner of determining the rows may be performed in a manner of a row.
In another practical implementation, when the target brightness value is N15, the sizes of Q14, Q13, Q12, Q11, Q10, Q9, Q8, Q7, Q6, Q5, Q4, Q3, Q2, Q1 and N15 are sequentially compared, if present, a first new brightness value smaller than the target brightness value is determined, the backlight value and the gray scale brightness value corresponding to the new brightness value are determined as the optimal backlight value and the optimal highest gray scale brightness value, if there is no new brightness value smaller than the target brightness value, P14, P13, P12, P11, P10, P9, P8, P7, P6, P5, P4, P3, P2, P1 and N15 are sequentially compared, if there is present, a first new brightness value smaller than the target brightness value is determined, the corresponding optimal backlight value and the optimal gray scale brightness value are determined as the optimal backlight value and the first gray scale brightness value smaller than the target brightness value, then sequentially comparing O14, O13, O12, O11, O10, O9, O8, O7, O6, O5, O4, O3, O2, O1 and N15, if present, determining a first new brightness value smaller than the target brightness value, determining a backlight value and a gray scale brightness value corresponding to the new brightness value as an optimal backlight value and an optimal maximum gray scale brightness value, if there is no first new brightness value smaller than the target brightness value, sequentially comparing M15, L15, K15, J15, I15, H15, G15, F15, E15, D15, C15, B15 and N15, if there is a first new brightness value smaller than the target brightness value, determining a backlight value and a gray scale brightness value corresponding to the new brightness value and a gray scale brightness value as an optimal backlight value and an optimal gray scale, if there is no first new brightness value smaller than the target brightness value, then sequentially comparing M72, L15, N15 and N15, until it is determined that a first new luminance value smaller than the target luminance value is obtained.
And determining the Backlight value and the gray scale brightness value corresponding to the New brightness value as an optimal Backlight value Level _ Backlight _ New and an optimal highest gray scale brightness value L _ Max _ New.
In the embodiment, the mode of testing the display device to obtain the preset backlight value-gray scale brightness value-brightness value table is adopted, and then the preset backlight value-gray scale brightness value-brightness value table is searched to determine the enhanced amplitude of the image pixel, so that the precision is high.
And S307, sending the optimal backlight value to the backlight control module so that the backlight control module adjusts the backlight.
For details, please refer to the related art, which will not be described in detail in this embodiment.
S308, sending the best maximum gray-scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
And sending the optimal highest gray scale brightness value to a pixel enhancement module, and multiplying all gray scale brightness values in the original video frame image by the ratio according to the ratio of the optimal highest gray scale brightness value to the highest gray scale brightness value by the pixel enhancement module so as to realize pixel enhancement and improve the image display effect.
On one hand, the backlight is dynamically adjusted, and meanwhile, the image pixels are enhanced, so that the display brightness and the effect of the image are retained to the maximum extent while the energy consumption is reduced. The invention can be realized by simple table look-up and hardware increase without a large amount of complex operations, and has simple method, high efficiency and good effect.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, which includes:
the acquiring and analyzing module 100 is configured to acquire and analyze a video frame image to obtain video frame image information, where the video frame image information includes luminance distribution information of gray scale luminance values of the video frame image;
a highest gray scale brightness value determining module 200, configured to determine a highest gray scale brightness value according to the brightness distribution information;
the comparison module 300 is configured to compare the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result;
and the execution module 400 is configured to determine an optimal backlight value according to the comparison result so as to adjust the backlight, and determine an optimal highest gray-scale luminance value according to the comparison result so as to implement pixel enhancement.
The display apparatus provided in this embodiment may be implemented on a computing device that includes one or more processors, which may be microprocessors, controllers, or otherwise configured to process computer-executable instructions to control the operation of the device. The computing device also includes a display device capable of enabling display of the image.
In some specific embodiments, the obtaining and parsing module 100 includes:
an acquisition unit configured to acquire a video frame image;
a luminance distribution histogram obtaining unit for analyzing the video frame image to obtain a luminance distribution histogram of gray scale luminance values of the video frame image;
and the removing unit is used for removing the distribution information which is smaller than the preset proportion in the brightness distribution histogram to obtain the brightness distribution information according to the sequence of the gray scale brightness values from large to small.
In some specific embodiments, the execution module 400 includes:
the first determining unit is used for determining that the optimal backlight value of the video frame image is a reference backlight value and the optimal highest gray scale brightness value of the video frame image is the highest gray scale brightness value when the highest gray scale brightness value is equal to the maximum gray scale brightness value;
the first sending unit is used for sending the reference backlight value to the backlight control module so that the backlight control module can adjust backlight;
and the second unit is used for sending the highest gray-scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
In some specific embodiments, the execution module 400 includes:
the second determining unit is used for determining a target brightness value in a preset backlight value-gray scale brightness value-brightness value table by using the highest gray scale brightness value and the reference backlight value when the highest gray scale brightness value is smaller than the maximum gray scale brightness value;
a third determining unit, configured to compare luminance values in a preset backlight value-gray scale luminance value-luminance value table according to a preset direction with the target luminance value as a center, and determine a first new luminance value smaller than the target luminance value;
the fourth determining unit is used for determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest gray scale brightness value;
a third sending unit, configured to send the optimal backlight value to the backlight control module, so that the backlight control module adjusts backlight;
and the fourth sending unit is used for sending the optimal highest gray-scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
In some specific embodiments, the method further comprises:
and the reading module is used for measuring and obtaining a preset backlight value-gray scale brightness value-brightness value table of the target display equipment.
Since the embodiment of the display apparatus portion and the embodiment of the display method portion correspond to each other, please refer to the description of the embodiment of the display method portion for the embodiment of the display apparatus portion, which is not repeated here.
In the following, an electronic device provided by an embodiment of the present application is introduced, and the electronic device described below and the display method described above may be referred to correspondingly.
The present embodiment provides an electronic device, including:
a memory for storing a computer program;
a processor for implementing the steps of the display method as described above when executing the computer program.
Since the embodiment of the electronic device portion and the embodiment of the display method portion correspond to each other, please refer to the description of the embodiment of the display method portion for the embodiment of the electronic device portion, which is not repeated here.
In the following, a computer-readable storage medium provided by an embodiment of the present application is described, and the computer-readable storage medium described below and the display method described above may be referred to with each other,
the present embodiment provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the display method as described above.
Since the embodiment of the computer-readable storage medium portion and the embodiment of the display method portion correspond to each other, please refer to the description of the embodiment of the display method portion for the embodiment of the computer-readable storage medium portion, which is not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
A display method, a display device, an electronic apparatus, and a computer-readable storage medium provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (6)
1. A display method, comprising:
acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image;
determining the highest gray scale brightness value according to the brightness distribution information;
comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result;
determining an optimal backlight value according to the comparison result so as to adjust backlight, and determining an optimal highest gray scale brightness value according to the comparison result so as to realize pixel enhancement;
the acquiring and analyzing the video frame image to obtain the video frame image information includes:
acquiring the video frame image;
analyzing the video frame image to obtain a brightness distribution histogram of gray scale brightness values of the video frame image;
according to the sequence of the gray scale brightness values from large to small, removing the distribution information smaller than a preset proportion in the brightness distribution histogram to obtain the brightness distribution information;
the determining an optimal backlight value according to the comparison result so as to adjust the backlight and determining an optimal highest gray-scale luminance value according to the comparison result so as to realize pixel enhancement includes:
when the highest gray scale brightness value is equal to the maximum gray scale brightness value, determining that the optimal backlight value of the video frame image is a reference backlight value and the optimal highest gray scale brightness value of the video frame image is the highest gray scale brightness value;
sending the reference backlight value to a backlight control module so that the backlight control module can adjust backlight;
sending the highest gray scale brightness value to a pixel enhancement module so that the pixel enhancement module can realize pixel enhancement;
the determining an optimal backlight value according to the comparison result so as to adjust the backlight and determining an optimal highest gray-scale luminance value according to the comparison result so as to realize pixel enhancement includes:
when the highest gray scale brightness value is smaller than the maximum gray scale brightness value, determining a target brightness value in a preset backlight value-gray scale brightness value-brightness value table by using the highest gray scale brightness value and a reference backlight value;
taking the target brightness value as a center, comparing brightness values in a preset backlight value-gray scale brightness value-brightness value table, and determining a first new brightness value smaller than the target brightness value;
determining the backlight value and the gray scale brightness value corresponding to the new brightness value as the optimal backlight value and the optimal highest gray scale brightness value;
sending the optimal backlight value to a backlight control module so that the backlight control module can adjust backlight;
and sending the optimal highest gray scale brightness value to a pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
2. The method as claimed in claim 1, wherein before comparing the highest gray-scale luminance value with the maximum gray-scale luminance value to obtain the comparison result, the method further comprises:
and measuring and obtaining a preset backlight value-gray scale brightness value-brightness value table of the target display equipment.
3. The method according to claim 2, wherein the preset backlight value-gray scale luminance value-luminance value table is a 16 x 16 table.
4. A display device, comprising:
the acquisition and analysis module is used for acquiring and analyzing a video frame image to obtain video frame image information, wherein the video frame image information comprises brightness distribution information of gray scale brightness values of the video frame image;
the highest gray scale brightness value determining module is used for determining the highest gray scale brightness value according to the brightness distribution information;
the comparison module is used for comparing the highest gray scale brightness value with the maximum gray scale brightness value to obtain a comparison result;
the execution module is used for determining an optimal backlight value according to the comparison result so as to adjust backlight, and determining an optimal highest gray scale brightness value according to the comparison result so as to realize pixel enhancement;
the acquisition and analysis module comprises:
an acquisition unit configured to acquire the video frame image;
a luminance distribution histogram obtaining unit configured to analyze the video frame image to obtain a luminance distribution histogram of a gray-scale luminance value of the video frame image;
the removing unit is used for removing the distribution information which is smaller than a preset proportion in the brightness distribution histogram according to the sequence of the gray scale brightness values from large to small to obtain the brightness distribution information;
the execution module includes:
a first determining unit, configured to determine that the optimal backlight value of the video frame image is a reference backlight value and the optimal maximum gray-scale luminance value of the video frame image is the maximum gray-scale luminance value when the maximum gray-scale luminance value is equal to the maximum gray-scale luminance value;
the first sending unit is used for sending the reference backlight value to a backlight control module so that the backlight control module can adjust backlight;
the second sending unit is used for sending the highest gray scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement;
the execution module includes:
a second determining unit, configured to determine a target luminance value in a preset backlight value-gray scale luminance value-luminance value table by using the highest gray scale luminance value and a reference backlight value when the highest gray scale luminance value is smaller than the maximum gray scale luminance value;
a third determining unit, configured to compare luminance values in a preset backlight value-gray scale luminance value-luminance value table with the target luminance value as a center, and determine a first new luminance value smaller than the target luminance value;
a fourth determining unit, configured to determine a backlight value and a gray-scale luminance value corresponding to the new luminance value as the optimal backlight value and the optimal highest gray-scale luminance value;
a third sending unit, configured to send the optimal backlight value to a backlight control module, so that the backlight control module adjusts backlight;
and the fourth sending unit is used for sending the optimal highest gray scale brightness value to the pixel enhancement module so that the pixel enhancement module can realize pixel enhancement.
5. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the display method according to any one of claims 1 to 3 when executing the computer program.
6. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the display method according to any one of claims 1 to 3.
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| CN112750086A (en) * | 2020-08-31 | 2021-05-04 | 腾讯科技（深圳）有限公司 | Image processing method and device, electronic equipment and storage medium |
| CN113920948A (en) * | 2021-09-28 | 2022-01-11 | 屏丽科技成都有限责任公司 | Adjusting method and computer readable medium for backlight in field sequential display device |
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