Video processing method, video processing device, and display device

A video processing method, comprising:

• obtaining a video signal, a color gamut range of the video signal including at least two color zones, each of the at least two color zones corresponding to a set of correction data;
• performing chromatic calibration on the video signal, including correcting image data of the video signal in a color zone of the at least two color zones using a set of correction data corresponding to the color zone;
• and
• outputting the video signal that has undergone the chromatic calibration;
• wherein each set of correction data in sets of correction data corresponding to the at least two color zones is obtained through a reference matrix;
• and
• the reference matrix A satisfies following conditions:
• A
• =
• N
• Panel
• -
• 1
• ⁢
• M
• standard
• ,
• where
• ⁢
• N
• Panel
• =
• (
• x
• 1
• x
• 2
• x
• 3
• y
• 1
• y
• 2
• y
• 3
• z
• 1
• z
• 2
• z
• 3
• )
• ⁢
• (
• S
• 1
• 0
• 0
• 0
• S
• 2
• 0
• 0
• 0
• S
• 3
• )
• ⁢
• or
• ⁢
• M
• standard
• =
• (
• x
• 1
• x
• 2
• x
• 3
• y
• 1
• y
• 2
• y
• 3
• z
• 1
• z
• 2
• z
• 3
• )
• ⁢
• (
• S
• 1
• 0
• 0
• 0
• S
• 2
• 0
• 0
• 0
• S
• 3
• )
• ;
• and
• ⁢
• (
• S
• 1
• S
• 2
• S
• 3
• )
• =
• (
• x
• 1
• x
• 2
• x
• 3
• y
• 1
• y
• 2
• y
• 3
• z
• 1
• z
• 2
• z
• 3
• )
• -
• 1
• ⁢
• (
• x
• w
• y
• w
• 1
• z
• w
• y
• w
• )
• ;
• wherein
• in a condition of determining NPanel, x1, y1 and z1 are XYZ color space chromatic coordinates of a color presented by a pixel when driven by a first value that has not been corrected, X2, y2 and z2 are XYZ color space chromatic coordinates of a color presented by the pixel when driven by a second value that has not been corrected, x3, y3 and z3 are XYZ color space chromatic coordinates of a color presented by the pixel when driven by a third value that has not been corrected, and xw, yw and zw are XYZ color space chromatic coordinates of a color presented by the pixel when driven by a seventh value that has not been corrected;
• in a condition of determining M standard, x1, y1 and z1 are XYZ color space chromatic coordinates corresponding to the first value in a high-definition digital video standard, x2, y2 and z2 are XYZ color space chromatic coordinates corresponding to the second value in the high-definition digital video standard, x3, y3 and z3 are XYZ color space chromatic coordinates corresponding to the third value in the high-definition digital video standard, and xw, yw and zw are XYZ color space chromatic coordinates corresponding to the seventh value in the high-definition digital video standard;
• the first value, the second value, the third value and the seventh value each include a first color sub-pixel value, a second color sub-pixel value and a third color sub-pixel value;
• a first color sub-pixel value of the first value is a maximum value, a second color sub-pixel value of the first value is equal to 0, and a third color sub-pixel value of the first value is equal to 0;
• a first color sub-pixel value of the second value is equal to 0, a second color sub-pixel value of the second value is the maximum value, and a third color sub-pixel value of the second value is equal to 0;
• a first color sub-pixel value of the third value is equal to 0, a second color sub-pixel value of the third value is equal to 0, and a third color sub-pixel value of the third value is the maximum value;
• and
• a first color sub-pixel value, a second color sub-pixel value and a third color sub-pixel value of the seventh value are all equal and each are the maximum value.