The image processing method includes: analyzing an image frame to obtain an original gain value corresponding to grayscale values of the image frame, wherein the original gain value is greater than 1; obtaining a lookup table recording conversion relationship between default grayscale values and default gain values, wherein the lookup table is used for performing anti-saturation processing on image data of the image frame; according to the original gain value, performing anti-saturation processing for the image frame by using the lookup table to obtain an adjusted conversion relationship of the image frame, wherein the adjusted conversion relationship defines a conversion relationship between different grayscale values of the image frame and corresponding adjusted gain values; and performing gain processing on image data of the image frame according to the adjusted conversion relationship.