shat1.m

本程序的目的是通过变化DCT系数以及寻找可以应用的DCT系数的最小值来进行可扩展的MPEG压缩

function [originalSI,decodedSI,originalTI,decodedTI] = shat1(Original,Decoded,previousOriginal,previousDecoded)
%%%spatial information
originalSI=std(std(double(edge(Original,'sobel'))));
decodedSI=std(std(double(edge(Decoded,'sobel'))));

%%%temporal information
originalTI=std(std(double(Original-previousOriginal)));
decodedTI=std(std(double(Decoded-previousDecoded)));