Image tone adjusting method, adjusting apparatus and computer storage medium

The present invention relates to an image tone adjusting method, an adjusting apparatus and a computer storage medium. The method comprises the following steps: fitting an overlapping area between a target image and a first image to obtain a first correction parameter, and fitting an overlapping area between the target image and a second image to obtain a second correction parameter; performing interpolation for each pixel in the target image to obtain a corresponding correction parameter, and correcting the target image according to the corresponding correction parameter; fitting an overlapping area between the corrected target image and the first image to obtain a first RGB three-channel linear transformation parameter, and fitting an overlapping area between the corrected target image and the second image to obtain a second RGB three-channel linear transformation parameter; and performing linear interpolation on each pixel in the corrected target image to obtain a corresponding RGB three-channel linear transformation parameter, and transforming the corrected target image according to the corresponding RGB three-channel linear transformation parameter. Thus, brightness values of the first image, the target image and the second image can be adjusted to be consistent, and color values can transition better.