Patent ID: 11915667
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The method according to claim 4, wherein each color component in the plurality of original pixel values is a natural number multiple of X, X being a positive integer, and X=2t, t being a natural number; wherein
updating the corrected pixel value corresponding to any original pixel value further comprises:
acquiring the pixel value of the third pixel based on the original pixel value and an OETF;
acquiring the third chroma based on the pixel value of the third pixel;
sending the pixel value of the third pixel to a signal generator, wherein the signal generator is configured to generate a target signal carrying the pixel value of the third pixel;
acquiring the target signal;
acquiring the original pixel value based on the pixel value of the third pixel carried by the target signal and an EOTF;
determining the corrected pixel value corresponding to the original pixel value in the initial look-up table;
acquiring the pixel value of the fourth pixel based on the corrected pixel value and the OETF;
displaying the fourth pixel based on the pixel value of the fourth pixel; and
receiving the fourth chroma detected by a colorimeter, wherein the colorimeter is configured to detect the fourth chroma of the fourth pixel;
and correcting the to-be-displayed image based on the target look-up table comprises:
acquiring a converted image based on the to-be-displayed image and the EOTF, wherein pixels in the to-be-displayed image correspond one-to-one to pixels in the converted image, and a pixel value of a pixel in the converted image is determined based on a corresponding pixel and the EOTF;
acquiring a corrected converted image by performing a correction process on the converted image based on the target look-up table;
acquiring a corrected to-be-displayed image based on the corrected converted image and the OETF, wherein pixels in the corrected to-be-displayed image correspond one-to-one to pixels in the corrected converted image, and a pixel value of a pixel in the corrected to-be-displayed image is determined based on a corresponding pixel and the OETF; wherein
the correction process comprises:
when the converted image comprises a coarsely corrected pixel value and the plurality of original pixel values do not comprise the coarsely corrected pixel value, determining, in the target look-up table, adjacent pixel values of the coarsely corrected pixel value in the plurality of original pixel values;
acquiring the corrected pixel value of the coarsely corrected pixel value by processing corrected pixel values corresponding to the adjacent pixel values in the target look-up table with a trilinear interpolation method;
correcting the coarsely corrected pixel value to be the corrected pixel value of the coarsely corrected pixel value; and
when the converted image comprises an accurately corrected pixel value and the plurality of original pixel values comprise the accurately corrected pixel value, correcting the accurately corrected pixel value to be a corrected pixel value corresponding to the accurately corrected pixel value in the target look-up table.