CN108156533A - 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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- CN108156533A CN108156533A CN201711472713.8A CN201711472713A CN108156533A CN 108156533 A CN108156533 A CN 108156533A CN 201711472713 A CN201711472713 A CN 201711472713A CN 108156533 A CN108156533 A CN 108156533A
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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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Liquid Crystal Display Device Control (AREA)
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Abstract
The invention discloses a kind of smart television backlight adjusting methods, include the following steps：Obtain the backlight data of each subregion of current picture；Calculate the average pixel luminance value of each subregion of current picture；According to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected, and the smart television is controlled to be shown according to the revised backlight data.The invention also discloses a kind of smart television and computer readable storage mediums.The invention avoids due to the backlight flicker caused by the backlight data gap of front and rear frame picture is excessive the problem of.
Description
Technical field
The present invention relates to ntelligent television technolog field more particularly to a kind of smart television backlight adjusting method, smart televisions
And computer readable storage medium.
Background technology
At present, more and more smart televisions use television backlight region regulation technology.Skill is adjusted in television backlight region
In art, the backlight of TV can be adjusted according to the light and shade of image, for example, brightness is increased in the part that screen picture highlights,
And in the part reduce brightness of screen picture dark, best contrast is not only reached in this way, and reduce the power consumption of backlight.
But the backlight data of each subregion is refreshed in real time according to the signal of image, in front and rear picture backlight data
When changing greatly, backlight flicker may result in.
The above is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that the above is existing skill
Art.
Invention content
It can it is a primary object of the present invention to provide a kind of smart television backlight adjusting method, smart television and computer
Read storage medium, it is intended to avoid the problem that the backlight flicker caused by the backlight data gap of front and rear frame picture is excessive.
To achieve the above object, the present invention provides a kind of smart television backlight adjusting method, the smart television backlight tune
Section method includes the following steps：
Obtain the backlight data of each subregion of current picture；
Calculate the average pixel luminance value of each subregion of current picture；
According to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected, and controls institute
Smart television is stated to be shown according to the revised backlight data.
Preferably, the step of backlight data of the acquisition each subregion of current picture includes：
Obtain the maximum backlight brightness values of each subregion and average backlight brightness values；
According to the maximum backlight brightness values and the average backlight brightness values, the backlight number of each subregion is calculated
According to.
Preferably, the step of average pixel luminance value of the calculating each subregion of current picture includes：
Obtain the pixel quantity of each subregion and the brightness value of each pixel；
Calculate the sum of brightness value of the pixel of each subregion；
Quotient of the sum of the brightness value of the pixel of each subregion between the pixel quantity of each subregion is calculated,
The quotient is the average pixel luminance value of each subregion.
Preferably, the average pixel luminance value according to each subregion corrects the backlight number of each subregion
According to the step of include：
According to the average pixel luminance value of each subregion, each point corresponding with the average pixel luminance value is determined
The correction factor in area；
According to the correction factor of each subregion, the backlight data of each subregion is corrected.
Preferably, the average pixel luminance value according to each subregion determines and the average pixel luminance value
The step of correction factor of corresponding each subregion, includes：
According to the average pixel luminance value, the corresponding numerical intervals of the average pixel luminance value are determined；
According to the numerical intervals, the correction factor is determined.
Preferably, the correction factor according to each subregion corrects the step of the backlight data of each subregion
Suddenly include：
Calculate the product between the correction factor of each subregion and the backlight data of each subregion, result of calculation
As each revised backlight data of subregion.
To achieve the above object, the present invention also provides a kind of smart television, the smart television includes：
Memory, processor and it is stored in the smart television backlight that can be run on the memory and on the processor
Program is adjusted, the smart television backlight adjusts when program is performed by the processor and realizes above-mentioned smart television backlight adjusting side
The step of method.
To achieve the above object, the present invention also provides a kind of computer readable storage medium, the computer-readable storages
Smart television backlight is stored on medium and adjusts program, the smart television backlight is adjusted and realized when program is executed by processor
The step of stating smart television backlight adjusting method.
Smart television backlight adjusting method provided by the invention, smart television and computer readable storage medium, first
The backlight data of each subregion of current picture is obtained, and calculates the average pixel luminance value of each subregion of current picture, Ran Hougen
According to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected, and controls smart television according to revised
Backlight data is shown.The invention avoids the backlight flickers caused by the backlight data gap of front and rear frame picture is excessive
Problem.
Description of the drawings
Fig. 1 is the hardware running environment schematic diagram of terminal that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of smart television backlight adjusting method first embodiment of the present invention；
Fig. 3 is the refinement flow diagram for the backlight data that each subregion of current picture is obtained in the present invention；
Fig. 4 is the refinement flow diagram for the average pixel luminance value that each subregion of current picture is calculated in the present invention；
Fig. 5 is the refinement flow diagram for the backlight data that each subregion is corrected in the present invention；
Fig. 6 is the flow signal for the correction factor that each subregion corresponding with average pixel luminance value is determined in the present invention
Figure；
Fig. 7 is the refinement flow diagram for the backlight data that each subregion is corrected in the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of smart television backlight adjusting method, avoids the backlight data gap mistake due to front and rear frame picture
The problem of big caused backlight flicker.
As shown in Figure 1, the hardware running environment schematic diagram for the terminal that Fig. 1, which is the embodiment of the present invention, to be related to.
Terminal of the embodiment of the present invention can be smart television.
As shown in Figure 1, the terminal can include：Processor 1001, such as CPU, network interface 1004, user interface
1003, memory 1005, communication bus 1002.Wherein, communication bus 1002 is used to implement the connection communication between these components.
User interface 1003 can include display screen (Display), input unit such as keyboard (Keyboard), optional user interface
1003 can also include standard wireline interface and wireless interface.Network interface 1004 can optionally connect including the wired of standard
Mouth, wireless interface (such as memory (non-volatile memory), such as magnetic disk storage.Memory 1005 optionally may be used also
To be independently of the storage device of aforementioned processor 1001.
It, can be with it will be understood by those skilled in the art that the restriction of the structure of the terminal shown in Fig. 1 not structure paired terminal
Including either combining certain components or different components arrangement than illustrating more or fewer components.
As shown in Figure 1, it can lead to as in a kind of memory 1005 of computer storage media including operating system, network
Believe that module, Subscriber Interface Module SIM and smart television backlight adjust program.
In terminal shown in Fig. 1, network interface 1004 is mainly used for connecting background server, is carried out with background server
Data communicate；User interface 1003 is mainly used for connecting client (user terminal), with client into row data communication；And processor
1001 can be used for the smart television backlight stored in memory 1005 is called to adjust program, and perform following operate：
Obtain the backlight data of each subregion of current picture；
Calculate the average pixel luminance value of each subregion of current picture；
According to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected, and controls institute
Smart television is stated to be shown according to the revised backlight data.
Further, processor 1001 can call the smart television backlight stored in memory 1005 to adjust program, also
Perform following operate：
Obtain the maximum backlight brightness values of each subregion and average backlight brightness values；
According to the maximum backlight brightness values and the average backlight brightness values, the backlight number of each subregion is calculated
According to.
Further, processor 1001 can call the smart television backlight stored in memory 1005 to adjust program, also
Perform following operate：
Obtain the pixel quantity of each subregion and the brightness value of each pixel；
Calculate the sum of brightness value of the pixel of each subregion；
Quotient of the sum of the brightness value of the pixel of each subregion between the pixel quantity of each subregion is calculated,
The quotient is the average pixel luminance value of each subregion.
Further, processor 1001 can call the smart television backlight stored in memory 1005 to adjust program, also
Perform following operate：
According to the average pixel luminance value of each subregion, each point corresponding with the average pixel luminance value is determined
The correction factor in area；
According to the correction factor of each subregion, the backlight data of each subregion is corrected.
Further, processor 1001 can call the smart television backlight stored in memory 1005 to adjust program, also
Perform following operate：
According to the average pixel luminance value, the corresponding numerical intervals of the average pixel luminance value are determined；
According to the numerical intervals, the correction factor is determined.
Further, processor 1001 can call the smart television backlight stored in memory 1005 to adjust program, also
Perform following operate：
Calculate the product between the correction factor of each subregion and the backlight data of each subregion, result of calculation
As each revised backlight data of subregion.
With reference to Fig. 2, in the first embodiment, the smart television backlight adjusting method includes：
Step S10, the backlight data of each subregion of current picture is obtained；
In the present embodiment, smart television application backlight area regulation technology, backlight area is divided into several subregions, to press
Local detail adjusting is carried out according to the light and shade of different zones on picture.
Specifically, when receiving picture signal, maximum backlight brightness values and the average backlight for obtaining each subregion are bright
Angle value the backlight data of each subregion is calculated according to maximum backlight brightness values and average backlight brightness values, by serial
The backlight data of each subregion is sent to micro-control unit by Peripheral Interface, and micro-control unit is after treatment by the back of the body of each subregion
Light data is sent to driver, to carry out backlight control to current picture.During the display of image, there are image compensations
Operation, this is because compared to traditional television set, the television set using backlight area regulation technology is less than in pixel brightness value
255 region reduces backlight brightness values, in order not to reduce display effect, then it is bright to make up the backlight of reduction by image compensation
Degree.
In the present embodiment, maximum backlight brightness values and average backlight brightness values in subregion calculate the back of the body of the subregion
Light data.For calculating the backlight data of a subregion, the backlight data of the subregion can be calculated with equation below：
BL=α nBMax+(1-αn)BAvg
Wherein, BL refers to backlight data, BMaxRefer to maximum backlight brightness values, BAvgRefer to average backlight brightness values, n refers to
Grade is adjusted, α is constant.
For example, using the television set of 12bit lighting, maximum backlight brightness values are：212- 1=4095.And a certain subregion
Average backlight brightness values can be calculated according to the average pixel luminance value of the subregion.Specifically, the average picture of the subregion is calculated
Quotient between plain brightness value and maximum pixel brightness value, and the product between quotient and maximum backlight brightness values is calculated, this multiplies
Product is the average backlight brightness values of the subregion.Such as a certain subregion average pixel luminance value for 25.5, maximum pixel is bright
When angle value is 255, then the average backlight brightness values of the subregion are 4095*10%=409.5.The calculating of average pixel luminance value
Method is as described in step S20, and details are not described herein.It should be noted that it is not limited between step S10 and step S20 successively suitable
Sequence, you can first carry out step S10, can also first carry out step S20.
In the calculation formula of backlight data, α can take 3.Adjusting grade can be configured according to practical application, such as
Adjusting series has 8 grades, and it is 1 grade that setting, which adjusts grade, then n=1/8.It is illustrated with n=1/8, then the backlight of the subregion
Data are 3/8*4095+ (1-3/8) * 4095*10%=1789.6.
During televising, the backlight data of the subregion is also changing, for example, in next frame picture the subregion the back of the body
Light data is 0, then Δ BL=1789.6-0=1789.6 will be clearly visible backlight flicker.
Step S20, the average pixel luminance value of each subregion of current picture is calculated；
In the present embodiment, backlight area is divided into multiple subregions according to actual needs, and each subregion includes several pictures
Element, each pixel have corresponding pixel value.
Specifically, for calculating the average pixel luminance value of a subregion, the calculating side of average pixel luminance value is sketched
Method：
The pixel brightness value of the pixel quantity and each pixel in the subregion is obtained, calculates all pixels in the subregion
The sum of pixel brightness value, and the quotient between the sum of pixel brightness value for calculating the subregion and the pixel quantity of the subregion, the quotient
Value is the average pixel luminance value of the subregion.
Wherein, for the brightness value of pixel between 0 to 255, the pixel intensity close to 255 is higher, and the brightness close to 0 is relatively low,
Rest part just belongs to middle tone.The differentiation of this brightness be it is a kind of absolutely distinguish, i.e., the pixel near 255 is bloom, near 0
Pixel be shadow, middle tone is 128 or so.Average pixel luminance value reflects the bright-dark degree of the subregion, and can be according to this point
The average pixel luminance in area calculates the average backlight brightness values of the subregion.
For example, pixel is 100 in the subregion, the sum of pixel brightness value is 2550, then its average pixel luminance value
As 25.5.
Step S30, according to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected,
And the smart television is controlled to be shown according to the revised backlight data.
In the present embodiment, due to the visual characteristic of human eye, for brighter picture, human eye for brightness change perception not
Significantly, be not in apparent backlight flicker if backlight changes greatly also, for the bigger picture of brightness；And for
Low bright picture, human eye is more apparent for the perception of brightness change, also, and brightness complicated for image information is smaller
Picture, if backlight changes greatly, just will appear apparent backlight flicker, thus according to average pixel luminance come determine correct system
Number, so as to correct backlight data according to correction factor.
For example, when the average pixel luminance value of a certain subregion is more than or equal to the first default value, do not need to this
The backlight data of subregion is modified, i.e., correction factor is set as 1.It should be noted that the first default value can be
204, the present invention is not specifically limited.
For example, when the average pixel luminance value of a certain subregion is less than or equal to the second default value, by correction factor
It is set as 3/8.It should be noted that the second default value can be 25.5, the present invention is not specifically limited.
For example, the average pixel luminance value when a certain subregion is more than the second default value, it, can during less than the first default value
Correction factor is configured according to actual needs, such as 5/8,7/8 etc..
Specifically, revised backlight data can be calculated with equation below：
BL={ α nBMax+(1-αn)BAvg}β
Wherein, BL refers to backlight data, BMaxRefer to maximum backlight brightness values, BAvgRefer to average backlight brightness values, n refers to
Grade is adjusted, α is constant, and β is correction factor.
For example, using the television set of 12bit lighting, the maximum backlight brightness values of a certain subregion are 4095, if average picture
Plain brightness value is 25.5, then β takes 3/8, and maximum pixel brightness value is 255, then the average backlight brightness values of the subregion are
4095*10%=409.5, α take 3, n to take 1/8, then the revised backlight data of the subregion is { 3/8*4095+ (1-3/8) *
4095*10% } * 3/8=671.
During televising, the backlight data of the subregion is also changing, for example, in next frame picture the subregion the back of the body
Light data is 0, then Δ BL=671-0=671, relative to the changing value of the backlight data before amendment, and revised backlight number
According to changing value reduce very much, it is possible thereby to greatly reduce backlight flicker.
In the first embodiment, the backlight data of each subregion of current picture is obtained first, and it is each to calculate current picture
The average pixel luminance value of subregion then according to the average pixel luminance value of each subregion, corrects the backlight data of each subregion,
And smart television is controlled to be shown according to revised backlight data.In this way, it avoids due to the backlight number of front and rear frame picture
The problem of caused backlight flicker excessive according to gap.
In a second embodiment, as shown in figure 3, on the basis of above-mentioned embodiment shown in Fig. 2, the acquisition current picture
The step of backlight data of each subregion, includes：
Step S11, the maximum backlight brightness values of each subregion and average backlight brightness values are obtained；
Step S12, according to the maximum backlight brightness values and the average backlight brightness values, the institute of each subregion is calculated
State backlight data.
In the present embodiment, for calculating the backlight data of a subregion, the backlight data of the subregion can use equation below
It is calculated：
BL=α nBMax+(1-αn)BAvg
Wherein, BL refers to backlight data, BMaxRefer to maximum backlight brightness values, BAvgRefer to average backlight brightness values, n refers to
Grade is adjusted, α is constant.
For example, using the television set of 12bit lighting, maximum backlight brightness values are：212- 1=4095.And a certain subregion
Average backlight brightness values can be calculated according to the average pixel luminance value of the subregion.Specifically, the average picture of the subregion is calculated
Quotient between plain brightness value and maximum pixel brightness value, and the product between quotient and maximum backlight brightness values is calculated, this multiplies
Product is the average backlight brightness values of the subregion.Such as a certain subregion average pixel luminance value for 25.5, maximum pixel is bright
When angle value is 255, then the average backlight brightness values of the subregion are 4095*10%=409.5.The calculating of average pixel luminance value
Method is as described in step S20, and details are not described herein.It should be noted that it is not limited between step 10 and step S20 successively suitable
Sequence, you can first carry out step 10, can also first carry out step 20.
In the calculation formula of backlight data, α can take 3.Adjusting grade can be configured according to practical application, such as
Adjusting series has 8 grades, and it is 1 grade that setting, which adjusts grade, then n=1/8.It is illustrated with n=1/8, then the backlight of the subregion
Data are 3/8*4095+ (1-3/8) * 4095*10%=1789.6.
In a second embodiment, the maximum backlight brightness values of each subregion and average backlight brightness values are obtained, and according to
Maximum backlight brightness values and average backlight brightness values calculate the backlight data of each subregion.In this way, it avoids due to front and rear frame
The problem of backlight data gap of picture excessive caused backlight flicker.
In the third embodiment, it is described as shown in figure 4, on the basis of the embodiment shown in above-mentioned Fig. 2 to any one of Fig. 3
The step of average pixel luminance value for calculating each subregion of current picture, includes：
Step S21, the pixel quantity of each subregion and the brightness value of each pixel are obtained；
Step S22, the sum of brightness value of the pixel of each subregion is calculated；
Step S23, calculate the sum of brightness value of the pixel of each subregion and each subregion the pixel quantity it
Between quotient, the quotient is the average pixel luminance value of each subregion.
In the present embodiment, backlight area is divided into multiple subregions according to actual needs, and each subregion includes several pictures
Element, each pixel have corresponding pixel value.
Specifically, for calculating the average pixel luminance value of a subregion, the calculating side of average pixel luminance value is sketched
Method：
The pixel brightness value of the pixel quantity and each pixel in the subregion is obtained, calculates all pixels in the subregion
The sum of pixel brightness value, and the quotient between the sum of pixel brightness value for calculating the subregion and the pixel quantity of the subregion, the quotient
Value is the average pixel luminance value of the subregion.
Wherein, for the brightness value of pixel between 0 to 255, the pixel intensity close to 255 is higher, and the brightness close to 0 is relatively low,
Rest part just belongs to middle tone.The differentiation of this brightness be it is a kind of absolutely distinguish, i.e., the pixel near 255 is bloom, near 0
Pixel be shadow, middle tone is 128 or so.Average pixel luminance value reflects the bright-dark degree of the subregion, and can be according to this point
The average pixel luminance in area calculates the average backlight brightness values of the subregion.
For example, pixel is 300 in the subregion, the sum of pixel brightness value is 7650, then its average pixel luminance value
As 25.5.
In the third embodiment, the pixel quantity of each subregion and the brightness value of each pixel are obtained, calculates each point
The sum of the brightness value of the pixel in area calculates the picture of the sum of brightness value of the pixel of each subregion and each subregion
Quotient between prime number amount, the quotient are the average pixel luminance value of each subregion.In this way, it avoids due to front and rear
The problem of backlight data gap of frame picture excessive caused backlight flicker.
In the fourth embodiment, as shown in figure 5, on the basis of above-mentioned Fig. 2 to embodiment shown in Fig. 4, the basis is each
The step of average pixel luminance value of a subregion, the backlight data for correcting each subregion, includes：
Step S31, it according to the average pixel luminance value of each subregion, determines corresponding with the average pixel luminance value
Each subregion correction factor；
Step S32, according to the correction factor of each subregion, the backlight data of each subregion is corrected.
In the present embodiment, due to the visual characteristic of human eye, for brighter picture, human eye for brightness change perception not
Significantly, be not in apparent backlight flicker if backlight changes greatly also, for the bigger picture of brightness；And for
Low bright picture, human eye is more apparent for the perception of brightness change, also, and brightness complicated for image information is smaller
Picture, if backlight changes greatly, just will appear apparent backlight flicker, thus according to average pixel luminance come determine correct system
Number, so as to correct backlight data according to correction factor.
For example, when the average pixel luminance value of a certain subregion is more than or equal to the first default value, do not need to this
The backlight data of subregion is modified, i.e., correction factor is set as 1；Be less than when the average pixel luminance value of a certain subregion or
During equal to the second default value, correction factor is set as 3/8；It is preset when the average pixel luminance value of a certain subregion is more than second
Numerical value during less than the first default value, can according to actual needs be configured correction factor, such as 5/8,7/8 etc..It needs
Bright, the first default value can be 204, and the second default value can be 25.5, and the present invention is not specifically limited.
Specifically, the method that the backlight data of the subregion is corrected according to correction factor is：Calculate the correction factor of the subregion
Product between the backlight data of the subregion, result of calculation are the revised backlight data of the subregion.
In the fourth embodiment, it according to the average pixel luminance value of each subregion, determines bright with the mean pixel
The correction factor of the corresponding each subregion of angle value according to the correction factor of each subregion, corrects the back of the body of each subregion
Light data.In this way, it avoids due to the backlight flicker caused by the backlight data gap of front and rear frame picture is excessive the problem of.
In the 5th embodiment, as shown in fig. 6, on the basis of above-mentioned embodiment shown in Fig. 2 to Fig. 5, the basis is each
The average pixel luminance value of a subregion determines the correction factor of each subregion corresponding with the average pixel luminance value
Step includes：
Step S311, according to the average pixel luminance value, the corresponding numerical intervals of the average pixel luminance value are determined；
Step S312, according to the numerical intervals, the correction factor is determined.
In the present embodiment, when the average pixel luminance value of a certain subregion is more than or equal to the first default value, it is not required to
The backlight data of the subregion is modified, i.e., correction factor is set as 1；When the average pixel luminance value of a certain subregion is small
When the second default value, correction factor is set as 3/8；When the average pixel luminance value of a certain subregion is more than the
Two default values during less than the first default value, can according to actual needs be configured correction factor, such as 5/8,7/8 etc..
It should be noted that the first default value can be 204, the second default value can be 25.5, and the present invention is not specifically limited.
In the 5th embodiment, according to the average pixel luminance value, the corresponding number of the average pixel luminance value is determined
It is worth section, according to the numerical intervals, determines the correction factor.In this way, it avoids due to the backlight data of front and rear frame picture
Caused by gap is excessive the problem of backlight flicker.
In the sixth embodiment, as shown in fig. 7, on the basis of above-mentioned Fig. 2 to embodiment shown in fig. 6, the basis is each
The step of correction factor of a subregion, the backlight data for correcting each subregion, includes：
Step S321, multiplying between the correction factor of each subregion and the backlight data of each subregion is calculated
Product, result of calculation is the revised backlight data of each subregion.
Specifically, revised backlight data can be calculated with equation below：
BL={ α nBMax+(1-αn)BAvg}β
Wherein, BL refers to backlight data, BMaxRefer to maximum backlight brightness values, BAvgRefer to average backlight brightness values, n refers to
Grade is adjusted, α is constant, and β is correction factor.
For example, using the television set of 12bit lighting, the maximum backlight brightness values of a certain subregion are 4095, if average picture
Plain brightness value is 25.5, then β takes 3/8, and maximum pixel brightness value is 255, then the average backlight brightness values of the subregion are
4095*10%=409.5, α take 3, n to take 1/8, then the revised backlight data of the subregion is { 3/8*4095+ (1-3/8) *
4095*10% } * 3/8=671.
During televising, the backlight data of the subregion is also changing, for example, in next frame picture the subregion the back of the body
Light data is 0, then Δ BL=671-0=671, relative to the changing value of the backlight data before amendment, and revised backlight number
According to changing value reduce very much, it is possible thereby to greatly reduce backlight flicker.
In the sixth embodiment, it calculates between the correction factor of each subregion and the backlight data of each subregion
Product, result of calculation is the revised backlight data of each subregion.In this way, it avoids due to the back of the body of front and rear frame picture
Caused by light data gap is excessive the problem of backlight flicker.
The present invention also provides a kind of smart television, the smart television includes smart television backlight and adjusts program, the intelligence
Energy television backlight adjusts program and is arranged for carrying out above-mentioned smart television such as the smart television backlight adjusting under executive agent
The step of method.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored on the computer readable storage medium
There is smart television backlight to adjust program, the smart television backlight adjusts program and is executed by processor realization such as above-mentioned smart television
The step of for the smart television backlight adjusting method under executive agent.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be TV
Machine, mobile phone, computer, server, air conditioner or network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of smart television backlight adjusting method, which is characterized in that the smart television backlight adjusting method includes following step
Suddenly：
Obtain the backlight data of each subregion of current picture；
Calculate the average pixel luminance value of each subregion of current picture；
According to the average pixel luminance value of each subregion, the backlight data of each subregion is corrected, and controls the intelligence
Energy TV is shown according to the revised backlight data.
2. smart television backlight adjusting method as described in claim 1, which is characterized in that each point of the current picture of acquisition
The step of backlight data in area, includes：
Obtain the maximum backlight brightness values of each subregion and average backlight brightness values；
According to the maximum backlight brightness values and the average backlight brightness values, the backlight data of each subregion is calculated.
3. smart television backlight adjusting method as described in claim 1, which is characterized in that each point of the current picture of calculating
The step of average pixel luminance value in area, includes：
Obtain the pixel quantity of each subregion and the brightness value of each pixel；
Calculate the sum of brightness value of the pixel of each subregion；
Quotient of the sum of the brightness value of the pixel of each subregion between the pixel quantity of each subregion is calculated, it is described
Quotient is the average pixel luminance value of each subregion.
4. smart television backlight adjusting method as described in claim 1, which is characterized in that described according to each subregion
The step of average pixel luminance value, the backlight data for correcting each subregion, includes：
According to the average pixel luminance value of each subregion, each subregion corresponding with the average pixel luminance value is determined
Correction factor；
According to the correction factor of each subregion, the backlight data of each subregion is corrected.
5. smart television backlight adjusting method as claimed in claim 4, which is characterized in that described according to each subregion
The step of average pixel luminance value, the correction factor for determining each subregion corresponding with the average pixel luminance value, includes：
According to the average pixel luminance value, the corresponding numerical intervals of the average pixel luminance value are determined；
According to the numerical intervals, the correction factor is determined.
6. smart television backlight adjusting method as claimed in claim 4, which is characterized in that described according to each subregion
The step of correction factor, the backlight data for correcting each subregion, includes：
The product between the correction factor of each subregion and the backlight data of each subregion is calculated, result of calculation is
Each revised backlight data of subregion.
7. a kind of smart television, which is characterized in that the smart television includes memory, processor and is stored in the memory
Smart television backlight that is upper and can running on the processor adjusts program, and it is described that the smart television backlight adjusts program
It is realized when processor performs such as the step of smart television backlight adjusting method according to any one of claims 1 to 6.
8. a kind of computer readable storage medium, which is characterized in that intelligent electricity is stored on the computer readable storage medium
Program is adjusted depending on backlight, the smart television backlight, which is adjusted, to be realized when program is executed by processor as any in claim 1 to 6
Described in smart television backlight adjusting method the step of.
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