Quantisation error curve: A measure of similaritybetween requantised images
Chyi-Hwa Chu, Yuang-Chen Hsueh · Electronics Letters · 1994
A new similarity measure between a digital image and its quantised version is presented. By calculating the quantisation error on each of a sequence of subdomains, we can obtain a quantisation error curve as a similarity measure. This measure outperforms the commonly used measure for estimating the similarity between requantised images.