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Table 1 Features used for ENIQA

From: No-reference color image quality assessment: from entropy to perceptual quality

Group Feature vector Feature description
1 f1f6 MI between the RGB channels for two scales
2 f7f10 Mean and skewness of the TE of the grayscale image for two scales
3 f11f42 Mean and skewness of the TE of the eight subband images for two scales
4 f43f54 MI of the subband images in different orientations for two scales
5 f55f56 MI of the subband images at different center frequencies for two scales