| CPC G09G 3/3208 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/0271 (2013.01)] | 20 Claims |

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1. A method, comprising:
obtaining a gray level value of each pixel of an input image;
performing gray level compensation on the input image based on the gray level value of each pixel and at least two compensation gray level relationships, wherein a first compensation gray level relationship matches a first gray level range, and a second compensation gray level relationship matches a second gray level range, wherein the first compensation gray level relationship is fitted and generated based on an N-nomial algorithm, N is an integer greater than 1, and the second compensation gray level relationship is obtained in a linear interpolation manner, and wherein a gray level value within the first gray level range is greater than a gray level value within the second gray level range; and
displaying a compensated image on a display panel of an electronic device, wherein the compensated image is based on the gray level compensation of the input image.
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