A PSYCHOVISUAL COLOR IMAGE QUALITY METRIC INTEGRATING A COLOR CONTRAST SENSITIVITY FUNCTION

摘要

Any process applied to digital images has to be validated by a performance measure. In the compression area, this measure of performance provides a quality measure of the reconstructed images. The use of psychophysical tests to measure the quality is quite time consuming. Therefore, many quality metrics have been defined in order to reach a high correlation degree with the human judgment. In this paper, a perceptually tuned quality metric based on a wavelet transform and a color contrast sensitivity function is developed.