A Perceptual Distortion Metric for Digital Color Images

This paper presents a comprehensive distortion metric for digital color images. It is based on a normalization model of the human visual system that incorporates color perception. The model is shown to accurately fit psychophysical contrast sensitivity data as well as intra- and inter-channel contrast masking data from several different psychophysical experiments. The output of the metric is compared with subjective data for natural images.

• Type: Conference
• Year: 1998
• Where: ICIP
• Authors: Stefan Winkler
• Keywords: Comprehensive Distortion Metric, Contrast Masking Data, ICIP 1998, Image Processing, Psychophysical Contrast Sensitivity