The invention discloses a
color image quality evaluation method based on a color descriptor, which mainly solves the problem that the prior art can only give the sorting result between images, and cannot give the quality fraction which is more easily accepted by human beings. The implementation scheme is as follows: the preference
image pair is constructed by selecting two images, and the color harmony descriptor,
color contrast descriptor and color richness of each image are extracted; The difference between the two image features in the
image pair is used as the feature difference of the
image pair, and the preference class
label of the image pair is estimated. The training
data set is established by using the feature difference of each image pair and the corresponding preference class
label; Mapping feature difference vectors of all image pairs to their corresponding preference class labels; The perceptual
quality score is calculated according to the preference scale and the perceptual
quality score. The invention improves the accuracy of the color
layout, the
hue and the quality evaluation of the harmonious color of the image, the quality fraction conforms to the human
habit, and can be used in the compression, storage and transmission process of the
color image.