Provided is an image enhancement method, performed by a data processing device, the method including: performing a first edge-preserving filtering on an original image to obtain a first processed image; obtaining a detail feature of the original image based on the original image and the first processed image; determining a second processed image according to the detail feature and the first processed image; and processing the second processed image in a guided image filtering manner by using the original image as a first guidance image, to obtain a third processed image, and outputting the third processed image to be displayed.