Fig. 4From: No-reference color image quality assessment: from entropy to perceptual qualityIllustration of the discriminatory power of different feature combinations (zoom in to get the markers more discriminative). a Elements 1, 2, and 3. b Elements 9 and 10. c Elements 12, 14, and 16 (d). Elements 14 and 22. e Elements 52, 53, and 54. f Elements 55 and 56Back to article page