CN102497559A - Picture quality regulation method and system for quick screen matching - Google Patents
Picture quality regulation method and system for quick screen matching Download PDFInfo
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- CN102497559A CN102497559A CN2011104304290A CN201110430429A CN102497559A CN 102497559 A CN102497559 A CN 102497559A CN 2011104304290 A CN2011104304290 A CN 2011104304290A CN 201110430429 A CN201110430429 A CN 201110430429A CN 102497559 A CN102497559 A CN 102497559A
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Abstract
The invention discloses a picture quality regulation method for quick screen matching. The method comprises the following steps of: measuring a luminance value Lmax of a basic screen when the inside of a core outputs an all-white field signal to the basic screen, and measuring a luminance value Lreal of the basic screen when a signal generator outputs an all-white field signal to the basic screen; calculating a luminance attenuation factor K of the basic screen according to the Lmax and the Lreal; determining a Gamma parameter of the basic screen; acquiring a color parameter of the basic screen; and regulating the picture quality of a screen to be regulated according to the luminance attenuation factor K, the Gamma parameter and the color parameter of the basic screen. The invention also discloses a picture quality regulation system for the quick screen matching. By the method and the system, the picture quality of the screen can be automatically regulated, the screen matching cycle of a television can be shortened, and the research and development time of the television can be shortened.
Description
Technical field
The invention belongs to TV technology, particularly a kind of image quality control method and system of joining screen fast.
Background technology
Along with the development of TV tech, a movement need be joined a lot of different display screens in the television set R&D process, and in this serial model No., and the adjustment of display screen image quality all is to be that standard is regulated with a certain basis screen.In the prior art, manually debug through joining the screen personnel, the quality of image quality basically all is to pass judgment on naked eyes are subjective.Making like this that the cycle join screen is long and access the effect of coming varies with each individual, and can not satisfy the image quality requirement fully again if share the image quality parameter of basis screen fully.
Summary of the invention
Main purpose of the present invention is to provide a kind of image quality control method of joining screen fast, is intended to reduce joining the screen cycle of television set.
In order to realize goal of the invention, the present invention provides a kind of image quality control method of joining screen fast, may further comprise the steps:
Measuring machine in-core portion exports the brightness value L max and the signal generator of basis screen when complete white field signal is extremely basic to be shielded and exports entirely the basic brightness value L real that shields when shield on field signal to basis in vain;
Calculate the brightness decay factor K that shield on the basis based on Lmax and Lreal;
Confirm the Gamma parameter of basis screen;
Obtain the color parameter of basis screen;
Color parameter based on said brightness decay factor K, Gamma parameter and basis screen is regulated the image quality of waiting to transfer screen.
Preferably, said color parameter according to brightness decay factor K, Gamma parameter and basis screen is regulated and is waited to transfer the image quality of screen to comprise:
Regulate the luminance contrast curve of waiting to transfer screen according to the brightness decay factor K;
Transfer the brightness value of screen to regulate the Gamma curve of waiting to transfer screen based on the Gamma parameter with waiting;
Color parameter according to the basis screen is regulated the color of waiting to transfer screen.
Preferably, the said color parameter that obtains the basis screen specifically comprises:
The multiple signal of joining screen color that control-signals generator will be selected exports the basis screen respectively to;
Through corresponding brightness value and the chromaticity coordinates value of each color of colour temperature appearance retaking of a year or grade.
Preferably, wait to transfer the color of screen specifically to comprise based on the color parameter adjusting of basis screen:
Control-signals generator is exported respectively and is joined the screen color signal to waiting to transfer screen;
Adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.
Preferably, the said adjusting according to the brightness decay factor K waits to transfer the luminance contrast curve of screen specifically to comprise:
The complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator;
Regulate contrast level parameter and make Lreal_1=Lmax_1*K;
Obtain and wait to transfer screen when full black burst, screen center brightness value Lreal_2;
According to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draw through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.
Preferably, the said adjusting with the brightness value of waiting to transfer screen according to the Gamma parameter waits to transfer the Gamma curve of screen specifically to comprise:
Gamma curve said Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the theoretical brightness value of each point under Lreal_1 brightness;
Control-signals generator is exported the complete white field signal of corresponding luminance signals level to waiting to transfer screen;
Regulate white balance gains RGB-gain, make to get access to and wait to transfer the brightness value of screen to equal the corresponding brightness value of said Gamma curve;
Obtain said Gamma curve according to the linear interpolation between the RGB-gain value of said some points.
The present invention provides a kind of image quality regulating system of joining screen fast, and it comprises colour temperature appearance, signal generator and data processing equipment, and wherein, said data processing equipment comprises:
Basis screen brightness processed module, be used to control the complete white field signal of colour temperature appearance measuring machine in-core portion output to the basis during screen brightness value L max of basis screen and the complete white field signal of signal generator output to the basis brightness value L real of basis screen during screen;
Computing module is used for calculating the brightness decay factor K that shield on the basis according to Lmax and Lreal;
Gamma parameter processing module is used for the Gamma parameter of confirming that the basis is shielded;
The color treatments module is used to obtain the color parameter that shield on the basis;
Wait to transfer screen image quality adjustment module, be used for regulating the image quality of waiting to transfer screen according to the color parameter of said brightness decay factor K, Gamma parameter and basis screen.
Preferably, the said accent screen image quality adjustment module of treating specifically is used for:
Regulate the luminance contrast curve of waiting to transfer screen according to the brightness decay factor K;
Transfer the brightness value of screen to regulate the Gamma curve of waiting to transfer screen based on the Gamma parameter with waiting;
Color parameter according to the basis screen is regulated the color of waiting to transfer screen.
Preferably, said basis screen brightness processed module is further used for the multiple signal of joining screen color that control-signals generator will select and exports the basis screen respectively to;
Said color treatments module is further through corresponding brightness value and the chromaticity coordinates value of each color of colour temperature appearance retaking of a year or grade.
Preferably, the said accent screen image quality adjustment module of treating is further used for:
Control-signals generator is exported respectively and is joined the screen color signal to waiting to transfer screen;
Adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.
Preferably, the said accent screen image quality adjustment module of treating is further used for:
The complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator;
Regulate contrast level parameter and make Lreal_1=Lmax_1*K;
Obtain and wait to transfer screen when full black burst, screen center brightness value Lreal_2;
According to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draw through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.
Preferably, the said accent screen image quality adjustment module of treating is further used for:
Gamma curve said Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the theoretical brightness value of each point under Lreal_1 brightness;
Control-signals generator is exported the complete white field signal of corresponding luminance signals level to waiting to transfer screen;
Regulate white balance gains RGB-gain, make to get access to and wait to transfer the brightness value of screen to equal the corresponding brightness value of said Gamma curve;
Obtain said Gamma curve according to the linear interpolation between the RGB-gain value of said some points.
The present invention regulates the luminance contrast curve of waiting to transfer screen through the decay factor K that calculates basis screen, the Gamma parameter of obtaining the basis screen with join the parameter value that shields relevant colors and regulate the Gamma curve and the color of waiting to transfer screen respectively.Realize the automatic adjusting of image quality, can improve and wait to transfer the high image quality effect of screen and the goodness of fit of basis screen, reduced joining the screen cycle of television set, shortened the research and development time of television set.
Description of drawings
Fig. 1 joins the image quality control method one embodiment schematic flow sheet of screen fast for the present invention;
Fig. 2 joins the schematic flow sheet of the color parameter that obtains the basis screen among image quality control method one embodiment of screen fast for the present invention;
Fig. 3 regulates the schematic flow sheet of waiting to transfer screen color among image quality control method one embodiment of screen for the present invention joins fast;
Fig. 4 regulates the process schematic representation of waiting to transfer screen color among image quality control method one embodiment of screen for the present invention joins fast;
Fig. 5 regulates the schematic flow sheet of waiting to transfer screen luminance contrast curve among image quality control method one embodiment of screen for the present invention joins fast;
Fig. 6 regulates among image quality control method one embodiment of screen for the present invention joins fast and waits to transfer screen Gamma curve schematic flow sheet;
The structural representation that Fig. 7 joins image quality regulating system one embodiment of screen fast for the present invention;
Fig. 8 joins the structural representation of data processing equipment among image quality regulating system one embodiment of screen fast for the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, Fig. 1 joins the image quality control method one embodiment schematic flow sheet of screen fast for the present invention.This image quality control method of joining screen fast may further comprise the steps:
Step S10, measuring machine in-core portion export the brightness value L max and the signal generator of basis screen when complete white field signal is extremely basic to be shielded and export entirely the basic brightness value L real that shields when shield on field signal to basis in vain; In the embodiment of the invention, can pre-configured colour temperature appearance, PC (Personal Computer, PC) and signal generator; And PC linked to each other with TV by debugging acid; PC links to each other with the colour temperature appearance, and PC links to each other with signal generator, and signal generator is connected with TV.The PC end is installed the driver of colour temperature appearance and signal source, can directly pass through the PC control instrument.In addition, also a Control Software is installed, to control whole flow process at the PC end.In the embodiment of the invention; Can send a complete white test pictures through PC instructs to the TV movement; The TV movement is according to shielding to the basis by complete white field test pictures instruction output whole audience white signal; Adopt the colour temperature appearance to catch the monochrome information at basic screen center, at this moment, the brightness value at basic screen center is the maximum brightness value L max of this basis screen.Can send complete white field signal through PC instructs to signal generator; Signal generator sends whole audience white signal to basis screen based on this complete white field signal instruction; Adopt the colour temperature appearance to catch the monochrome information at basic screen center; At this moment, the brightness value at basic screen center is the actual maximum brightness value L real of this basis screen.
Step S20 calculates the brightness decay factor K that shield on the basis according to Lmax and Lreal; For example can carry out computing by the formula of K=Lreal/Lmax, obtain brightness decay factor K value through PC.
Step S30 confirms the Gamma parameter that shield on the basis; For example, can Gamma parameter in the debug process and common Gamma parameter series model be consistent through PC, 2.2gamma carries out flow according to standard.Concrete, television set is joined the screen personnel can be directly through input Gamma parameter in the PC.
Step S40 obtains the color parameter that shield on the basis; For example can export respectively and join screen relevant colors to basis screen through the PC control-signals generator; Catch relevant colors corresponding brightness and chromaticity coordinates information through the colour temperature appearance; And this information is sent to PC, analyze relevant colors corresponding brightness and chromaticity coordinates by PC.Concrete, this color can comprise redness (R), green (G) and blue (B) at least.Through the signal command of PC output red to signal generator; Signal generator shields to the basis based on this danger signal order output red signal; PC obtains the brightness and the chromaticity coordinates of this redness point through the colour temperature appearance, gets access to green with blue brightness and chromaticity coordinates after the same method.Further, the above-mentioned screen relevant colors of joining can also comprise cyan (C), purple (M), yellow (Y), the colour of skin (F).Adopt above-mentioned 7 kinds of colors, can improve the accuracy of color, make and wait to transfer screen more identical with the image quality effect of basis screen.
Step S50 regulates the image quality of waiting to transfer screen according to the color parameter of said brightness decay factor K, Gamma parameter and basis screen.Concrete, step S50 comprises: regulate according to decay factor K and wait to transfer the luminance contrast curve of screen, according to the Gamma parameter with wait to transfer the brightness value of screen to regulate and wait to transfer the Gamma curve of screen and regulate the color of waiting to transfer screen according to the color parameter of basis screen.
The present invention regulates the luminance contrast curve of waiting to transfer screen through the decay factor K that calculates basis screen, the Gamma parameter of obtaining the basis screen with join the parameter value that shields relevant colors and regulate the Gamma curve and the color of waiting to transfer screen respectively.Realize the automatic adjusting of image quality, can improve and wait to transfer the high image quality effect of screen and the goodness of fit of basis screen, reduced joining the screen cycle of television set, shortened the research and development time of television set.
With reference to Fig. 2, Fig. 2 joins the schematic flow sheet of step S40 among image quality control method one embodiment of screen fast for the present invention.As shown in Figure 2, step S40 comprises:
Step S41, the multiple signal of joining screen color that control-signals generator will be selected export the basis screen respectively to; For example; The redness that the PC control-signals generator will be selected (R), green (G) and blue (B), cyan (C), purple (M), yellow (Y), the colour of skin (F) are joined the screen color signal for 7 kinds and are exported the basis screen respectively to through HDMI (High Definition Multimedia Interface, HDMI).
Step S42 is through corresponding brightness value and the chromaticity coordinates value of each color of colour temperature appearance retaking of a year or grade.Through read back the respectively x of 7 kinds of colors of colour temperature appearance, y coordinate figure and brightness value are as the color references of waiting to transfer screen again for PC.
Accordingly, with reference to Fig. 3, in the aforementioned embodiment, among the above-mentioned steps S50, wait to transfer the color of screen specifically can comprise according to the color parameter adjusting of basis screen:
Step S51, control-signals generator is exported respectively and is joined the screen color signal to waiting to transfer screen; For example, PC may command signal generator sends redness (R), green (G) and blue (B), cyan (C), purple (M), yellow (Y), the colour of skin (F) 7 kinds of looks altogether respectively.
Step S52, adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.For example, PC can be adjusted the inner IHC (tone) of television set chip, IBC (brightness), and it is consistent through basic machine with chromaticity coordinates that ICC (colourity) register parameters reaches the brightness of every kind of color, guaranteed that like this two machine colour gamuts overlap basically, and color shows unanimity.As shown in Figure 4, the G ' (green) that for example waits to transfer screen has squinted with respect to the G (green) of basis screen, and promptly two color coordinatess are not corresponding, and can return G ' (green) correction this moment through adjustment IHC (tone), reaches the expressive force consistency.
With reference to Fig. 5, in the embodiment of the invention, among the abovementioned steps S50, wait to transfer the luminance contrast curve of screen to comprise according to above-mentioned decay factor K adjusting:
Step S53, the complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator; In the embodiment of the invention, also can control the colour temperature appearance and obtain Lmax_1 and Lreal_1 by the flow process of obtaining Lmax and Lreal among the above-mentioned steps S10 through PC.
Step S54 regulates contrast level parameter and makes Lreal_1=Lmax_1*K; For example; PC is according to the decay factor K of basis screen; When calculating is Lmax_1 in the maximum of waiting to transfer screen; Actual maximum brightness value Lmax_1*K (K=Lreal/Lmax) that should reach in theory and actual maximum brightness value Lreal_1 compare, and PC makes the actual maximum Lmax_1*K that should reach in theory equal actual maximum Lreal_1 through regulating contrast rating.
Step S55 obtains and waits to transfer screen when full black burst, screen center brightness value Lreal_2; The PC control-signals generator is sent full black burst, makes through the adjusting brightness register and waits to transfer the brightness at screen center no longer to change, and obtain the brightness value that this waits to transfer screen through the colour temperature appearance.
Step S56 according to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draws through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.PC adopts approach based on linear interpolation to obtain the luminance contrast curve according to above-mentioned contrast rating and brightness value.
According to Fig. 6, Fig. 6 transfers the brightness value of screen to regulate the Gamma curve schematic flow sheet of waiting transfer screen according to the Gamma parameter with waiting for the present invention joins among the image quality control method embodiment step S50 of screen fast, and this flow process may further comprise the steps:
Step S57, Gamma curve above-mentioned Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the brightness value under Lreal_1 brightness of each point; In the embodiment of the invention, the Gamma curve of employing standard 2.2 is done the Gamma curve of standard 2.2 through choosing 10 points.As from luminance signals level 0-100IRE, choosing 10 points that interval steps is 10IRE.According to the Gamma principle, the normalization coefficient of corresponding 10 points of standard 2.2Gamma can pass through formula: (L/100) ^2.2 draws it and is respectively: 0.00631; 0.02899; 0.0704; 0.13321; 0.21764; 0.32504; 0.45626; 0.61207; 0.79331; 1.Concrete, wait to transfer the brightness value of screen each point under Lreal_1 brightness to be (Lreal_1* ((L/100) ^2.2)) in theory.
Step S58, control-signals generator is exported the complete white field signal of corresponding luminance signals level to waiting to transfer screen; Can send the complete white field signal of corresponding luminance signals level according to the corresponding luminance signals level of above-mentioned 10 points by PC and instruct to signal generator, signal generator is exported corresponding complete white field signal according to this instruction and is shielded to waiting to transfer.
Step S59 regulates white balance gains RGB-gain, makes to get access to wait to transfer the brightness value of screen to equal the corresponding brightness value of above-mentioned Gamma curve; Can through PC to above-mentioned wait to transfer screen to regulate the RGB-gain of Gamma automatically in the result of the theoretical brightness value (Lreal_1* ((L/100) ^2.2)) of Lreal_1 and the comparison of intrinsic brilliance value (RGB-gain changes simultaneously; Promptly keeping the Gamma curve is the curve that RGB three rifle overlap) value, make through the colour temperature appearance and measure the brightness value (Lreal_1* ((L/100) ^2.2)) that the brightness of waiting to transfer screen just in time equals standard 2.2Gamma correspondence.
Step S510 draws a Gamma curve according to linear interpolation between the RGB-gain value of above-mentioned some points.Draw one 2.2 Gamma curve through linear interpolation between the RGB-gain value of above-mentioned 10 points.
The present invention also provides a kind of image quality regulating system of joining screen fast, is used to realize said method.With reference to Fig. 7, the structural representation that Fig. 7 joins image quality regulating system one embodiment of screen fast for the present invention.This image quality regulating system of joining screen fast comprises colour temperature appearance 10, signal generator 20 and data processing equipment 30.Data processing equipment 30 can be aforesaid PC, and it links to each other with TV through debugging acid, and PC links to each other with colour temperature appearance 10, and PC 10 links to each other with signal generator 20, and signal generator 20 is connected with TV.The PC end is installed the driver of colour temperature appearance and signal source, can directly pass through the PC control instrument.
With reference to Fig. 8, in the embodiment of the invention, data processing equipment 30 can comprise:
Basis screen brightness processed module 31, be used to control the complete white field signal of colour temperature appearance measuring machine in-core portion output to the basis during screen brightness value L max of basis screen and the complete white field signal of signal generator output to the basis brightness value L real of basis screen during screen; For example; Can shield the complete white test pictures of brightness processed module 31 transmissions through the basis instructs to the TV movement; The TV movement is according to shielding to the basis by complete white field test pictures instruction output whole audience white signal; Adopt colour temperature appearance 10 to catch the monochrome information at basic screen center, at this moment, the brightness value at basic screen center is the maximum brightness value L max of this basis screen.Also can shield the complete white field signal of brightness processed module 31 transmissions through the basis instructs to signal generator; Signal generator 20 is according to should complete white field signal instruction sending whole audience white signal to basis screen; Adopt colour temperature appearance 10 to catch the monochrome information at basic screen center; At this moment, the brightness value at basic screen center is the actual maximum brightness value L real of this basis screen.
Gamma parameter processing module 33 is used for the Gamma parameter of confirming that the basis is shielded; For example, Gamma parameter processing module 33 can be consistent Gamma parameter in the debug process and common Gamma parameter series model, and 2.2gamma carries out flow according to standard.Television set is joined the screen personnel can be through Gamma parameter processing module 33 directly through input Gamma parameter in the PC.
Wait to transfer screen image quality adjustment module 35, be used for regulating the image quality of waiting to transfer screen according to the color parameter of said brightness decay factor K, Gamma parameter and basis screen.Concrete, wait to transfer the processing of screen image quality adjustment module 35 to comprise: regulate according to decay factor K and wait to transfer the luminance contrast curve of screen, according to the Gamma parameter with wait to transfer the brightness value of screen to regulate and wait to transfer the Gamma curve of screen and regulate the color of waiting to transfer screen according to the color parameter of basis screen.
The present invention regulates the luminance contrast curve of waiting to transfer screen through the decay factor K that calculates basis screen, the Gamma parameter of obtaining the basis screen with join the parameter value that shields relevant colors and regulate the Gamma curve and the color of waiting to transfer screen respectively.Realize the automatic adjusting of image quality, can improve and wait to transfer the high image quality effect of screen and the goodness of fit of basis screen, reduced joining the screen cycle of television set, shortened the research and development time of television set.
Preferably, above-mentioned basis screen brightness processed module 31 is further used for the multiple signal of joining screen color that control-signals generator 20 will select and exports the basis screen respectively to; For example; Redness (R), green (G) and blue (B), cyan (C), purple (M), yellow (Y), the colour of skin (F) that basis screen brightness processed module 31 control-signals generator 20 will be selected are joined the screen color signal for 7 kinds and are exported the basis screen respectively to through HDMI (High Definition Multimedia Interface, HDMI).
Corresponding, wait to transfer screen image quality adjustment module 35 to be further used for:
Control-signals generator 20 is exported respectively and is joined the screen color signal to waiting to transfer screen; For example, wait to transfer screen image quality adjustment module 35 may command signal generators 20 to send redness (R), green (G) and blue (B), cyan (C), purple (M), yellow (Y), the colour of skin (F) respectively and amount to 7 kinds of looks to waiting to transfer screen.
Adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.For example; Wait to transfer screen image quality adjustment module 35 can adjust the inner IHC (tone) of television set chip, it is consistent that IBC (brightness), the brightness that ICC (colourity) register parameters reaches every kind of color and chromaticity coordinates pass through basic machine; Guaranteed that like this two machine colour gamuts overlap basically, the color performance is consistent.As shown in Figure 4, the G ' (green) that for example waits to transfer screen has squinted with respect to the G (green) of basis screen, and promptly two color coordinatess are not corresponding, and can return G ' (green) correction this moment through adjustment IHC (tone), reaches the expressive force consistency.
In the embodiment of the invention, wait to transfer screen image quality adjustment module 35 to be further used for:
The complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator;
Regulate contrast level parameter and make Lreal_1=Lmax_1*K;
Obtain and wait to transfer screen when full black burst, screen center brightness value Lreal_2;
According to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draw through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.
In the embodiment of the invention, also can obtain Lmax_1 and Lreal_1 by the flow process of obtaining Lmax and Lreal through waiting to transfer screen image quality adjustment module 35 control colour temperature appearance 10; Decay factor K according to the basis screen; When calculating is Lmax_1 in the maximum of waiting to transfer screen; Actual maximum brightness value Lmax_1*K (K=Lreal/Lmax) that should reach in theory and actual maximum brightness value Lreal_1 compare; PC makes the actual maximum Lmax_1*K that should reach in theory equal actual maximum Lreal_1 through regulating contrast rating; Control-signals generator 20 is sent full black burst, makes through the adjusting brightness register and waits to transfer the brightness at screen center no longer to change, and obtain the brightness value that this waits to transfer screen through colour temperature appearance 10; And adopt approach based on linear interpolation to obtain the luminance contrast curve according to above-mentioned contrast rating and brightness value.
In the embodiment of the invention, wait to transfer screen image quality adjustment module 35 also can be further used for:
Gamma curve said Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the theoretical brightness value of each point under Lreal_1 brightness;
The complete white field signal of the corresponding luminance signals level of control-signals generator 20 outputs is to waiting to transfer screen;
Regulate white balance gains RGB-gain, make to get access to and wait to transfer the brightness value of screen to equal the corresponding brightness value of said Gamma curve;
Obtain said Gamma curve according to the linear interpolation between the RGB-gain value of said some points.
Concrete, the processing mode of waiting to transfer screen image quality adjustment module 35 to regulate the Gamma curve of waiting to transfer screen according to Gamma parameter and the brightness value of waiting to transfer screen can not be described further at this with reference to aforementioned embodiment illustrated in fig. 6.
More than be merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (12)
1. an image quality control method of joining screen fast is characterized in that, may further comprise the steps:
Measuring machine in-core portion exports the brightness value L max and the signal generator of basis screen when complete white field signal is extremely basic to be shielded and exports entirely the basic brightness value L real that shields when shield on field signal to basis in vain;
Calculate the brightness decay factor K that shield on the basis based on Lmax and Lreal;
Confirm the Gamma parameter of basis screen;
Obtain the color parameter of basis screen;
Color parameter based on said brightness decay factor K, Gamma parameter and basis screen is regulated the image quality of waiting to transfer screen.
2. the method for claim 1 is characterized in that, said color parameter according to brightness decay factor K, Gamma parameter and basis screen is regulated and waited to transfer the image quality of screen to comprise:
Regulate the luminance contrast curve of waiting to transfer screen according to the brightness decay factor K;
Transfer the brightness value of screen to regulate the Gamma curve of waiting to transfer screen based on the Gamma parameter with waiting;
Color parameter according to the basis screen is regulated the color of waiting to transfer screen.
3. according to claim 1 or claim 2 method is characterized in that, the said color parameter that obtains the basis screen specifically comprises:
The multiple signal of joining screen color that control-signals generator will be selected exports the basis screen respectively to;
Through corresponding brightness value and the chromaticity coordinates value of each color of colour temperature appearance retaking of a year or grade.
4. method as claimed in claim 3 is characterized in that, said color parameter according to the basis screen is regulated and waited to transfer the color of screen specifically to comprise:
Control-signals generator is exported respectively and is joined the screen color signal to waiting to transfer screen;
Adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.
5. method as claimed in claim 4 is characterized in that, the said adjusting according to the brightness decay factor K waits to transfer the luminance contrast curve of screen specifically to comprise:
The complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator;
Regulate contrast level parameter and make Lreal_1=Lmax_1*K;
Obtain and wait to transfer screen when full black burst, screen center brightness value Lreal_2;
According to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draw through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.
6. method as claimed in claim 4 is characterized in that, the said adjusting with the brightness value of waiting to transfer screen according to the Gamma parameter waits to transfer the Gamma curve of screen specifically to comprise:
Gamma curve said Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the theoretical brightness value of each point under Lreal_1 brightness;
Control-signals generator is exported the complete white field signal of corresponding luminance signals level to waiting to transfer screen;
Regulate white balance gains RGB-gain, make to get access to and wait to transfer the brightness value of screen to equal the corresponding brightness value of said Gamma curve;
Obtain said Gamma curve according to the linear interpolation between the RGB-gain value of said some points.
7. an image quality regulating system of joining screen fast is characterized in that, comprises colour temperature appearance, signal generator and data processing equipment, and wherein, said data processing equipment comprises:
Basis screen brightness processed module, be used to control the complete white field signal of colour temperature appearance measuring machine in-core portion output to the basis during screen brightness value L max of basis screen and the complete white field signal of signal generator output to the basis brightness value L real of basis screen during screen;
Computing module is used for calculating the brightness decay factor K that shield on the basis according to Lmax and Lreal;
Gamma parameter processing module is used for the Gamma parameter of confirming that the basis is shielded;
The color treatments module is used to obtain the color parameter that shield on the basis;
Wait to transfer screen image quality adjustment module, be used for regulating the image quality of waiting to transfer screen according to the color parameter of said brightness decay factor K, Gamma parameter and basis screen.
8. system as claimed in claim 7 is characterized in that, the said accent screen image quality adjustment module of treating specifically is used for:
Regulate the luminance contrast curve of waiting to transfer screen according to the brightness decay factor K;
Transfer the brightness value of screen to regulate the Gamma curve of waiting to transfer screen based on the Gamma parameter with waiting;
Color parameter according to the basis screen is regulated the color of waiting to transfer screen.
9. like claim 7 or 8 described systems, it is characterized in that said basis screen brightness processed module is further used for the multiple signal of joining screen color that control-signals generator will select and exports the basis screen respectively to;
Said color treatments module is further through corresponding brightness value and the chromaticity coordinates value of each color of colour temperature appearance retaking of a year or grade.
10. system as claimed in claim 9 is characterized in that, the said accent screen image quality adjustment module of treating is further used for:
Control-signals generator is exported respectively and is joined the screen color signal to waiting to transfer screen;
Adjusting tone, brightness or colourity register parameters make waits to transfer the brightness of the corresponding color of screen consistent with the basis screen with chromaticity coordinates.
11. system as claimed in claim 10 is characterized in that, the said accent screen image quality adjustment module of treating is further used for:
The complete white field signal of measuring machine in-core portion output is to waiting to transfer the brightness value L max_1 that waits to transfer screen when shielding; Export complete white field signal to waiting to transfer the brightness value L real_1 that waits to transfer screen when shielding with signal generator;
Regulate contrast level parameter and make Lreal_1=Lmax_1*K;
Obtain and wait to transfer screen when full black burst, screen center brightness value Lreal_2;
According to said Lreal_2 and the contrast level parameter when the Lreal_1=Lmax_1*K, draw through linear interpolation and to wait the luminance contrast curve of transferring screen corresponding.
12. system as claimed in claim 10 is characterized in that, the said accent screen image quality adjustment module of treating is further used for:
Gamma curve said Gamma parameter is corresponding according to the luminance signals level is divided into some points, calculates the theoretical brightness value of each point under Lreal_1 brightness;
Control-signals generator is exported the complete white field signal of corresponding luminance signals level to waiting to transfer screen;
Regulate white balance gains RGB-gain, make to get access to and wait to transfer the brightness value of screen to equal the corresponding brightness value of said Gamma curve;
Obtain said Gamma curve according to the linear interpolation between the RGB-gain value of said some points.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982786A (en) * | 2012-12-18 | 2013-03-20 | 广东威创视讯科技股份有限公司 | Method and device for color consistency adjustment of multiple display screens |
| CN103680449A (en) * | 2013-12-17 | 2014-03-26 | Tcl集团股份有限公司 | Method and device for removing liquid crystal displayer mura |
| CN104766574A (en) * | 2015-03-24 | 2015-07-08 | 小米科技有限责任公司 | Color temperature regulating method and device |
| CN105259687A (en) * | 2015-10-20 | 2016-01-20 | 深圳创维－Rgb电子有限公司 | Liquid crystal display screen picture consistency adjusting method and system |
| CN108376529A (en) * | 2018-03-22 | 2018-08-07 | 京东方科技集团股份有限公司 | The adjustment method of data, apparatus and system |
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| CN112565728A (en) * | 2020-12-22 | 2021-03-26 | 京东方科技集团股份有限公司 | White balance adjusting method, system and device |
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| CN115550629A (en) * | 2021-06-29 | 2022-12-30 | 广州视琨电子科技有限公司 | Image quality adjusting method and device, storage medium and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668225A (en) * | 2009-09-25 | 2010-03-10 | 深圳创维－Rgb电子有限公司 | Method for adjusting gamma curve to improve image of flat television |
| CN101860765A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | White balance adjustment method |
-
2011
- 2011-12-20 CN CN201110430429.0A patent/CN102497559B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860765A (en) * | 2009-04-13 | 2010-10-13 | 鸿富锦精密工业（深圳）有限公司 | White balance adjustment method |
| CN101668225A (en) * | 2009-09-25 | 2010-03-10 | 深圳创维－Rgb电子有限公司 | Method for adjusting gamma curve to improve image of flat television |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982786B (en) * | 2012-12-18 | 2015-06-24 | 广东威创视讯科技股份有限公司 | Method and device for color consistency adjustment of multiple display screens |
| CN102982786A (en) * | 2012-12-18 | 2013-03-20 | 广东威创视讯科技股份有限公司 | Method and device for color consistency adjustment of multiple display screens |
| CN103680449A (en) * | 2013-12-17 | 2014-03-26 | Tcl集团股份有限公司 | Method and device for removing liquid crystal displayer mura |
| CN104766574A (en) * | 2015-03-24 | 2015-07-08 | 小米科技有限责任公司 | Color temperature regulating method and device |
| CN105259687A (en) * | 2015-10-20 | 2016-01-20 | 深圳创维－Rgb电子有限公司 | Liquid crystal display screen picture consistency adjusting method and system |
| CN108376529B (en) * | 2018-03-22 | 2022-05-17 | 京东方科技集团股份有限公司 | Data debugging method, device and system |
| CN108376529A (en) * | 2018-03-22 | 2018-08-07 | 京东方科技集团股份有限公司 | The adjustment method of data, apparatus and system |
| CN110070841A (en) * | 2019-03-26 | 2019-07-30 | 深圳市嘉利达专显科技有限公司 | A kind of adjusting process of display screen, device and electronic equipment |
| CN110070841B (en) * | 2019-03-26 | 2020-11-27 | 深圳市嘉利达专显科技有限公司 | Display screen adjusting method and device and electronic equipment |
| CN113542711A (en) * | 2020-04-14 | 2021-10-22 | 青岛海信移动通信技术股份有限公司 | Image display method and terminal |
| CN112565728A (en) * | 2020-12-22 | 2021-03-26 | 京东方科技集团股份有限公司 | White balance adjusting method, system and device |
| CN114664273A (en) * | 2020-12-23 | 2022-06-24 | 深圳Tcl数字技术有限公司 | Color temperature adjusting method and device, terminal equipment and storage medium |
| CN115550629A (en) * | 2021-06-29 | 2022-12-30 | 广州视琨电子科技有限公司 | Image quality adjusting method and device, storage medium and electronic equipment |
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