Scrambling quality evaluation method based on image distance measure
Tieniu Tan · Jisuanji gongcheng yu sheji · 2009
A kind of new image scrambling quality evaluation method is presented by image distance measure modified.Aiming at the shortcoming of Euclidean distance that is not factually capable of measuring scrambled image differentia degree.Considering that the ar-bitrary position image gray information is compactly associated with its neighbor image gray information,a kind of new modified image distance is proposed,then the evaluation function of describing image scrambling quality good or bad is constructed by new modified image distance with Riemann measure properties.The conclusion of which objective evaluation method can be consistent with subjective evaluation method is drawn by many experimental results.