CN108156533B - Smart television backlight adjusting method, smart television and storage medium - Google Patents
Smart television backlight adjusting method, smart television and storage medium Download PDFInfo
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- CN108156533B CN108156533B CN201711472713.8A CN201711472713A CN108156533B CN 108156533 B CN108156533 B CN 108156533B CN 201711472713 A CN201711472713 A CN 201711472713A CN 108156533 B CN108156533 B CN 108156533B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/57—Control of contrast or brightness
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Abstract
The invention discloses a backlight adjusting method for an intelligent television, which comprises the following steps: acquiring backlight data of each partition of a current picture; calculating the average pixel brightness value of each partition of the current picture; and correcting the backlight data of each partition according to the average pixel brightness value of each partition, and controlling the intelligent television to display according to the corrected backlight data. The invention also discloses the intelligent television and a computer readable storage medium. The invention avoids the problem of backlight flicker caused by overlarge difference of backlight data of front and back frame pictures.
Description
Technical Field
The invention relates to the technical field of intelligent televisions, in particular to an intelligent television backlight adjusting method, an intelligent television and a computer readable storage medium.
Background
Currently, more and more smart tvs use tv backlight area adjustment technology. In the technology of adjusting the backlight area of the television, the backlight of the television can be adjusted according to the brightness of the image, for example, the brightness is increased in the highlight part of the screen image, and the brightness is reduced in the dark part of the screen image, so that the optimal contrast is achieved, and the power consumption of the backlight is reduced.
However, the backlight data of each partition is refreshed in real time according to the signal of the image, and when the backlight data of the front and rear frames is greatly changed, the backlight flicker is caused.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a backlight adjusting method for an intelligent television, the intelligent television and a computer readable storage medium, aiming at avoiding the problem of backlight flicker caused by overlarge difference of backlight data of front and back frame pictures.
In order to achieve the above object, the present invention provides a method for adjusting backlight of a smart television, which comprises the following steps:
acquiring backlight data of each partition of a current picture;
calculating the average pixel brightness value of each partition of the current picture;
and correcting the backlight data of each partition according to the average pixel brightness value of each partition, and controlling the intelligent television to display according to the corrected backlight data.
Preferably, the step of acquiring backlight data of each partition of the current picture comprises:
acquiring the maximum backlight brightness value and the average backlight brightness value of each partition;
and calculating the backlight data of each subarea according to the maximum backlight brightness value and the average backlight brightness value.
Preferably, the step of calculating the average pixel brightness value of each partition of the current picture comprises:
acquiring the number of pixels of each partition and the brightness value of each pixel;
calculating the sum of the luminance values of the pixels of the respective partitions;
and calculating a quotient value between the sum of the brightness values of the pixels of each partition and the number of the pixels of each partition, wherein the quotient value is the average pixel brightness value of each partition.
Preferably, the step of modifying the backlight data of each partition according to the average pixel brightness value of each partition includes:
determining a correction coefficient of each partition corresponding to the average pixel brightness value according to the average pixel brightness value of each partition;
and correcting the backlight data of each subarea according to the correction coefficient of each subarea.
Preferably, the step of determining a correction coefficient for each partition corresponding to the average pixel brightness value according to the average pixel brightness value for each partition includes:
determining a numerical value interval corresponding to the average pixel brightness value according to the average pixel brightness value;
and determining the correction coefficient according to the numerical value interval.
Preferably, the step of modifying the backlight data of each partition according to the modification coefficient of each partition includes:
and calculating the product of the correction coefficient of each partition and the backlight data of each partition, wherein the calculation result is the backlight data corrected by each partition.
In order to achieve the above object, the present invention further provides an intelligent television, including:
the intelligent television backlight adjusting method comprises a memory, a processor and an intelligent television backlight adjusting program which is stored on the memory and can run on the processor, wherein the steps of the intelligent television backlight adjusting method are realized when the intelligent television backlight adjusting program is executed by the processor.
In order to achieve the above object, the present invention further provides a computer readable storage medium, where the computer readable storage medium stores a smart tv backlight adjustment program, and the smart tv backlight adjustment program, when executed by a processor, implements the steps of the smart tv backlight adjustment method.
The invention provides a backlight adjusting method of an intelligent television, the intelligent television and a computer readable storage medium. The invention avoids the problem of backlight flicker caused by overlarge difference of backlight data of front and back frame pictures.
Drawings
Fig. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a backlight adjusting method for a smart television according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a detailed process of obtaining backlight data of each partition of a current frame according to the present invention;
FIG. 4 is a schematic diagram illustrating a refinement process for calculating an average pixel brightness value of each partition of a current frame according to the present invention;
FIG. 5 is a schematic diagram illustrating a detailed process of modifying backlight data of each partition according to the present invention;
FIG. 6 is a schematic flow chart illustrating the process of determining the correction coefficients of the respective partitions corresponding to the average pixel luminance values according to the present invention;
fig. 7 is a schematic diagram illustrating a detailed process of correcting backlight data of each partition according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a backlight adjusting method for an intelligent television, which solves the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures.
As shown in fig. 1, fig. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be an intelligent television.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (such as a non-volatile memory, e.g., disk storage) and the memory 1005 may optionally also be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and a smart tv backlight adjustment program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call the smart tv backlight adjustment program stored in the memory 1005, and perform the following operations:
acquiring backlight data of each partition of a current picture;
calculating the average pixel brightness value of each partition of the current picture;
and correcting the backlight data of each partition according to the average pixel brightness value of each partition, and controlling the intelligent television to display according to the corrected backlight data.
Further, the processor 1001 may call the smart tv backlight adjustment program stored in the memory 1005, and further perform the following operations:
acquiring the maximum backlight brightness value and the average backlight brightness value of each partition;
and calculating the backlight data of each subarea according to the maximum backlight brightness value and the average backlight brightness value.
Further, the processor 1001 may call the smart tv backlight adjustment program stored in the memory 1005, and further perform the following operations:
acquiring the number of pixels of each partition and the brightness value of each pixel;
calculating the sum of the luminance values of the pixels of the respective partitions;
and calculating a quotient value between the sum of the brightness values of the pixels of each partition and the number of the pixels of each partition, wherein the quotient value is the average pixel brightness value of each partition.
Further, the processor 1001 may call the smart tv backlight adjustment program stored in the memory 1005, and further perform the following operations:
determining a correction coefficient of each partition corresponding to the average pixel brightness value according to the average pixel brightness value of each partition;
and correcting the backlight data of each subarea according to the correction coefficient of each subarea.
Further, the processor 1001 may call the smart tv backlight adjustment program stored in the memory 1005, and further perform the following operations:
determining a numerical value interval corresponding to the average pixel brightness value according to the average pixel brightness value;
and determining the correction coefficient according to the numerical value interval.
Further, the processor 1001 may call the smart tv backlight adjustment program stored in the memory 1005, and further perform the following operations:
and calculating the product of the correction coefficient of each partition and the backlight data of each partition, wherein the calculation result is the backlight data corrected by each partition.
Referring to fig. 2, in a first embodiment, the method for adjusting backlight of a smart television includes:
step S10, acquiring backlight data of each partition of the current picture;
in this embodiment, the smart television employs a backlight area adjustment technique, and the backlight area is divided into a plurality of partitions to perform local detail adjustment according to the brightness of different areas on the screen.
Specifically, when an image signal is received, a maximum backlight brightness value and an average backlight brightness value of each partition are obtained, backlight data of each partition are obtained through calculation according to the maximum backlight brightness value and the average backlight brightness value, the backlight data of each partition are sent to a micro control unit through a serial peripheral interface, and the micro control unit sends the backlight data of each partition to a driver after processing so as to perform backlight control on a current picture. In the display process of the image, there is an operation of image compensation because the television set to which the backlight area adjustment technique is applied reduces the backlight luminance value in the area where the pixel luminance value is lower than 255 as compared with the conventional television set, and in order not to reduce the display effect, the reduced backlight luminance is compensated by the image compensation.
In this embodiment, the backlight data of the partition is calculated according to the maximum backlight brightness value and the average backlight brightness value in the partition. Taking the example of calculating the backlight data of a partition as an example, the backlight data of the partition can be calculated by the following formula:
BL＝αnBMax+(1-αn)BAvg
where BL refers to backlight data, BMaxRefers to the maximum backlight brightness value, BAvgRefers to the average backlight brightness value, n refers to the adjustment level, and α is a constant.
For example, a 12-bit light distribution television set has a maximum backlight brightness value of: 212-1 ═ 4095. The average backlight brightness value of a certain partition can be calculated according to the average pixel brightness value of the partition. Specifically, a quotient between the average pixel brightness value and the maximum pixel brightness value of the partition is calculated, and a product between the quotient and the maximum backlight brightness value is calculated, where the product is the average backlight brightness value of the partition. For example, when the average pixel brightness value of a certain partition is 25.5 and the maximum pixel brightness value is 255, the average backlight brightness value of the partition is 4095 × 10% ═ 409.5. The method for calculating the average pixel brightness value is as described in step S20, and will not be described herein again. It should be noted that, the sequence between step S10 and step S20 is not limited, and step S10 may be executed first, or step S20 may be executed first.
In the calculation formula of the backlight data, α may take 3. The adjustment level may be set according to the actual application, for example, the adjustment level has 8 levels, the adjustment level is set to 1 level, and then n is 1/8. Taking n-1/8 as an example, the backlight data of the partition is 3/8 × 4095+ (1-3/8) × 4095 × 10% — 1789.6.
During the tv playing process, the backlight data of the partition is also changing, for example, if the backlight data of the partition in the next frame is 0, then Δ BL is 1789.6-0 is 1789.6, and the backlight flicker is obviously seen.
Step S20, calculating the average pixel brightness value of each partition of the current picture;
in this embodiment, the backlight area is divided into a plurality of partitions according to actual needs, each partition includes a plurality of pixels, and each pixel has a corresponding pixel value.
Specifically, taking the calculation of the average pixel brightness value of one partition as an example, briefly describe the calculation method of the average pixel brightness value:
acquiring the number of pixels in the partition and the pixel brightness value of each pixel, calculating the sum of the pixel brightness values of all the pixels in the partition, and calculating the quotient between the sum of the pixel brightness values of the partition and the number of the pixels of the partition, wherein the quotient is the average pixel brightness value of the partition.
The brightness value of the pixel is between 0 and 255, the brightness of the pixel close to 255 is higher, the brightness close to 0 is lower, and the rest part belongs to the middle tone. This distinction in luminance is an absolute distinction, i.e. pixels near 255 are high, pixels near 0 are dark, and the middle is around 128. The average pixel brightness value reflects the brightness of the partition, and the average backlight brightness value of the partition can be calculated according to the average pixel brightness of the partition.
For example, if there are 100 pixels in the partition and the sum of the pixel luminance values is 2550, the average pixel luminance value is 25.5.
Step S30, according to the average pixel brightness value of each partition, correcting the backlight data of each partition, and controlling the smart television to display according to the corrected backlight data.
In the embodiment, due to the visual characteristics of human eyes, for a brighter picture, human eyes do not perceive the brightness change obviously, and for a picture with larger brightness, if the backlight change is larger, no obvious backlight flicker occurs; for a low-brightness picture, human eyes can obviously perceive brightness change, and for a picture with complex image information and small brightness, if backlight change is large, obvious backlight flicker can occur, so that a correction coefficient is determined according to average pixel brightness, and backlight data is corrected according to the correction coefficient.
For example, when the average pixel brightness value of a certain partition is greater than or equal to the first preset value, the backlight data of the partition does not need to be corrected, i.e., the correction coefficient is set to 1. It should be noted that the first preset value may be 204, and the present invention is not limited in particular.
For example, when the average pixel brightness value of a certain partition is less than or equal to a second preset value, the correction coefficient is set to 3/8. It should be noted that the second preset value may be 25.5, and the present invention is not limited in particular.
For example, when the average pixel brightness value of a certain partition is greater than the second preset value and less than the first preset value, the correction coefficients, such as 5/8, 7/8, etc., may be set according to actual needs.
Specifically, the corrected backlight data may be calculated by the following formula:
BL＝{αnBMax+(1-αn)BAvg}β
where BL refers to backlight data, BMaxRefers to the maximum backlight brightness value, BAvgRefers to the average backlight brightness value, n refers to the adjustment level, α is a constant, and β is a correction coefficient.
For example, in a 12-bit television, the maximum backlight brightness value of a partition is 4095, if the average pixel brightness value is 25.5, then β is 3/8, and the maximum pixel brightness value is 255, then the average backlight brightness value of the partition is 4095 × 10% > -409.5, α is 3, and n is 1/8, then the modified backlight data of the partition is {3/8 × 4095+ (1-3/8) } 4095 × 10% } 3/8 ═ 671.
During the tv playing process, the backlight data of the partition is also changing, for example, if the backlight data of the partition in the next frame is 0, then Δ BL-671-0-671, the change value of the backlight data after the correction is much lower than the change value of the backlight data before the correction, thereby greatly reducing the backlight flicker.
In the first embodiment, first, backlight data of each partition of a current picture is acquired, an average pixel brightness value of each partition of the current picture is calculated, then the backlight data of each partition is corrected according to the average pixel brightness value of each partition, and the smart television is controlled to display according to the corrected backlight data. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
In a second embodiment, as shown in fig. 3, based on the embodiment shown in fig. 2, the step of acquiring backlight data of each partition of the current picture includes:
step S11, acquiring the maximum backlight brightness value and the average backlight brightness value of each partition;
step S12, calculating the backlight data of each partition according to the maximum backlight brightness value and the average backlight brightness value.
In this embodiment, taking calculating the backlight data of a partition as an example, the backlight data of the partition may be calculated by the following formula:
BL＝αnBMax+(1-αn)BAvg
where BL refers to backlight data, BMaxRefers to the maximum backlight brightness value, BAvgRefers to the average backlight brightness value, n refers to the adjustment level, and α is a constant.
For example, a 12-bit light distribution television set has a maximum backlight brightness value of: 212-1 ═ 4095. The average backlight brightness value of a certain partition can be calculated according to the average pixel brightness value of the partition. Specifically, a quotient between the average pixel brightness value and the maximum pixel brightness value of the partition is calculated, and a product between the quotient and the maximum backlight brightness value is calculated, where the product is the average backlight brightness value of the partition. For example, when the average pixel brightness value of a certain partition is 25.5 and the maximum pixel brightness value is 255, the average backlight brightness value of the partition is 4095 × 10% ═ 409.5. The method for calculating the average pixel brightness value is as described in step S20, and will not be described herein again. It should be noted that the order between step 10 and step S20 is not limited, and step 10 may be executed first, or step 20 may be executed first.
In the calculation formula of the backlight data, α may take 3. The adjustment level may be set according to the actual application, for example, the adjustment level has 8 levels, the adjustment level is set to 1 level, and then n is 1/8. Taking n-1/8 as an example, the backlight data of the partition is 3/8 × 4095+ (1-3/8) × 4095 × 10% — 1789.6.
In the second embodiment, the maximum backlight brightness value and the average backlight brightness value of each partition are obtained, and the backlight data of each partition is calculated according to the maximum backlight brightness value and the average backlight brightness value. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
In a third embodiment, as shown in fig. 4, based on the embodiment shown in any one of fig. 2 to 3, the step of calculating the average pixel brightness value of each partition of the current picture includes:
step S21, acquiring the number of pixels of each partition and the brightness value of each pixel;
step S22, calculating the sum of luminance values of the pixels of each partition;
step S23, calculating a quotient between the sum of the luminance values of the pixels of each partition and the number of the pixels of each partition, where the quotient is the average pixel luminance value of each partition.
In this embodiment, the backlight area is divided into a plurality of partitions according to actual needs, each partition includes a plurality of pixels, and each pixel has a corresponding pixel value.
Specifically, taking the calculation of the average pixel brightness value of one partition as an example, briefly describe the calculation method of the average pixel brightness value:
acquiring the number of pixels in the partition and the pixel brightness value of each pixel, calculating the sum of the pixel brightness values of all the pixels in the partition, and calculating the quotient between the sum of the pixel brightness values of the partition and the number of the pixels of the partition, wherein the quotient is the average pixel brightness value of the partition.
The brightness value of the pixel is between 0 and 255, the brightness of the pixel close to 255 is higher, the brightness close to 0 is lower, and the rest part belongs to the middle tone. This distinction in luminance is an absolute distinction, i.e. pixels near 255 are high, pixels near 0 are dark, and the middle is around 128. The average pixel brightness value reflects the brightness of the partition, and the average backlight brightness value of the partition can be calculated according to the average pixel brightness of the partition.
For example, if there are 300 pixels in the partition and the sum of the luminance values of the pixels is 7650, the average luminance value of the pixels is 25.5.
In a third embodiment, the number of pixels of each partition and the luminance value of each pixel are obtained, the sum of the luminance values of the pixels of each partition is calculated, and a quotient between the sum of the luminance values of the pixels of each partition and the number of pixels of each partition is calculated, where the quotient is the average pixel luminance value of each partition. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
In a fourth embodiment, as shown in fig. 5, based on the embodiments shown in fig. 2 to 4, the step of modifying the backlight data of each partition according to the average pixel brightness value of each partition includes:
step S31, determining a correction coefficient for each partition corresponding to the average pixel luminance value, based on the average pixel luminance value for each partition;
step S32, modifying the backlight data of each partition according to the modification coefficient of each partition.
In the embodiment, due to the visual characteristics of human eyes, for a brighter picture, human eyes do not perceive the brightness change obviously, and for a picture with larger brightness, if the backlight change is larger, no obvious backlight flicker occurs; for a low-brightness picture, human eyes can obviously perceive brightness change, and for a picture with complex image information and small brightness, if backlight change is large, obvious backlight flicker can occur, so that a correction coefficient is determined according to average pixel brightness, and backlight data is corrected according to the correction coefficient.
For example, when the average pixel brightness value of a certain partition is greater than or equal to a first preset value, the backlight data of the partition does not need to be corrected, that is, the correction coefficient is set to 1; setting the correction coefficient to 3/8 when the average pixel brightness value of a certain partition is less than or equal to a second preset value; when the average pixel brightness value of a certain partition is greater than the second preset value and less than the first preset value, the correction coefficient may be set according to actual needs, such as 5/8, 7/8, and the like. It should be noted that the first preset value may be 204, and the second preset value may be 25.5, and the present invention is not limited specifically.
Specifically, the method for correcting the backlight data of the partition according to the correction coefficient is as follows: and calculating the product of the correction coefficient of the subarea and the backlight data of the subarea, wherein the calculation result is the backlight data corrected by the subarea.
In the fourth embodiment, a correction coefficient of each partition corresponding to the average pixel luminance value is determined based on the average pixel luminance value of each partition, and the backlight data of each partition is corrected based on the correction coefficient of each partition. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
In a fifth embodiment, as shown in fig. 6, based on the embodiments shown in fig. 2 to 5, the step of determining a correction coefficient of each partition corresponding to the average pixel luminance value according to the average pixel luminance value of each partition includes:
step S311, determining a numerical value interval corresponding to the average pixel brightness value according to the average pixel brightness value;
and step S312, determining the correction coefficient according to the numerical value interval.
In this embodiment, when the average pixel brightness value of a certain partition is greater than or equal to the first preset value, the backlight data of the partition does not need to be corrected, that is, the correction coefficient is set to 1; setting the correction coefficient to 3/8 when the average pixel brightness value of a certain partition is less than or equal to a second preset value; when the average pixel brightness value of a certain partition is greater than the second preset value and less than the first preset value, the correction coefficient may be set according to actual needs, such as 5/8, 7/8, and the like. It should be noted that the first preset value may be 204, and the second preset value may be 25.5, and the present invention is not limited specifically.
In a fifth embodiment, a value interval corresponding to the average pixel luminance value is determined according to the average pixel luminance value, and the correction coefficient is determined according to the value interval. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
In a sixth embodiment, as shown in fig. 7, based on the embodiments shown in fig. 2 to 6, the step of correcting the backlight data of each partition according to the correction coefficient of each partition includes:
step S321, calculating a product between the correction coefficient of each partition and the backlight data of each partition, where a calculation result is the backlight data corrected by each partition.
Specifically, the corrected backlight data may be calculated by the following formula:
BL＝{αnBMax+(1-αn)BAvg}β
where BL refers to backlight data, BMaxRefers to the maximum backlight brightness value, BAvgRefers to the average backlight brightness value, n refers to the adjustment level, α is a constant, and β is a correction coefficient.
For example, in a 12-bit television, the maximum backlight brightness value of a partition is 4095, if the average pixel brightness value is 25.5, then β is 3/8, and the maximum pixel brightness value is 255, then the average backlight brightness value of the partition is 4095 × 10% > -409.5, α is 3, and n is 1/8, then the modified backlight data of the partition is {3/8 × 4095+ (1-3/8) } 4095 × 10% } 3/8 ═ 671.
During the tv playing process, the backlight data of the partition is also changing, for example, if the backlight data of the partition in the next frame is 0, then Δ BL-671-0-671, the change value of the backlight data after the correction is much lower than the change value of the backlight data before the correction, thereby greatly reducing the backlight flicker.
In a sixth embodiment, a product between the correction coefficient of each partition and the backlight data of each partition is calculated, and the calculation result is the backlight data after correction of each partition. Therefore, the problem of backlight flicker caused by overlarge difference of backlight data of front and rear frame pictures is avoided.
The invention also provides the smart television, which comprises a smart television backlight adjusting program, wherein the smart television backlight adjusting program is configured to realize the steps of the smart television backlight adjusting method under the execution main body of the smart television.
The embodiment of the invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores the intelligent television backlight adjusting program, and the intelligent television backlight adjusting program is executed by a processor to realize the intelligent television backlight adjusting method under the execution main body of the intelligent television.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a television, a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The backlight adjusting method for the intelligent television is characterized by comprising the following steps of:
acquiring the maximum backlight brightness value and the average backlight brightness value of each partition;
calculating backlight data of each partition according to the maximum backlight brightness value and the average backlight brightness value;
acquiring the number of pixels of each partition and the brightness value of each pixel;
calculating the sum of the luminance values of the pixels of the respective partitions;
calculating a quotient value between the sum of the brightness values of the pixels of each partition and the number of the pixels of each partition, wherein the quotient value is the average pixel brightness value of each partition;
determining a numerical value interval corresponding to the average pixel brightness value according to the average pixel brightness value;
determining the correction coefficient according to the value interval, wherein the correction coefficient is less than or equal to 1, and the correction coefficient of the value interval corresponding to the higher average pixel brightness value is greater than the correction coefficient of the value interval corresponding to the lower average pixel brightness value;
and calculating the product of the correction coefficient of each partition and the backlight data of each partition, wherein the calculation result is the backlight data corrected by each partition, and controlling the intelligent television to display according to the corrected backlight data.
2. An intelligent television, characterized in that the intelligent television comprises a memory, a processor and an intelligent television backlight adjusting program stored on the memory and operable on the processor, and the intelligent television backlight adjusting program, when executed by the processor, implements the steps of the intelligent television backlight adjusting method according to claim 1.
3. A computer-readable storage medium, wherein the computer-readable storage medium has a smart tv backlight adjustment program stored thereon, and when executed by a processor, the smart tv backlight adjustment program implements the steps of the smart tv backlight adjustment method according to claim 1.
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| CN201711472713.8A CN108156533B (en) | 2017-12-28 | 2017-12-28 | Smart television backlight adjusting method, smart television and storage medium |
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| CN201711472713.8A CN108156533B (en) | 2017-12-28 | 2017-12-28 | Smart television backlight adjusting method, smart television and storage medium |
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| CN109102779B (en) * | 2018-08-23 | 2020-07-31 | 北京小米移动软件有限公司 | Backlight adjusting method and device |
| CN109036298B (en) * | 2018-10-23 | 2021-01-22 | 京东方科技集团股份有限公司 | Backlight driving method and device and display equipment |
| CN109545153A (en) * | 2018-11-23 | 2019-03-29 | 深圳Tcl新技术有限公司 | Luminance regulating method, television set and the storage medium of liquid crystal display |
| CN109901693A (en) * | 2019-01-11 | 2019-06-18 | 北京集创北方科技股份有限公司 | Method for managing power supply, power-supply management system and display system |
| CN110379379B (en) * | 2019-07-31 | 2021-02-19 | 京东方科技集团股份有限公司 | Backlight driving method and device, display device and storage medium |
| CN110660365A (en) * | 2019-11-01 | 2020-01-07 | 深圳创维－Rgb电子有限公司 | Regional backlight control method, display and storage medium |
| CN113497964B (en) * | 2020-03-19 | 2024-01-19 | 深圳Tcl数字技术有限公司 | Display method of local light control, storage medium and intelligent television |
| CN114863886A (en) * | 2022-07-05 | 2022-08-05 | 惠科股份有限公司 | Display panel brightness correction method and device and display equipment |
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