Method of and apparatus for detecting and adjusting colour values of skin tone pixels

摘要

A method of and apparatus for detecting skin tone pixels in an input image and adjusting colour values thereof for an output image are disclosed. For each of a plurality of pixels in the input image, it is determined (103) whether initial chromaticity values of each of said pixels lie within a skin tone area (110) defined in a chromaticity plane. The initial chromaticity values of those pixels that have chromaticity values lying within said skin tone area (110) are amended (105) to obtain amended chromaticity values for use in obtaining an output image.