shat.m

来自「实现图象,可以直接运行,里面有示例图象,十分便捷的实现图象压缩」· M 代码 · 共 7 行

function result = shat(originalSI,decodedSI,originalTI,decodedTI)
m1=rms(abs(5.81*((originalSI-decodedSI)/originalSI)));
temp=0.108*max([(originalTI-decodedTI) 0]);
m2=std(conv(temp,[-1,2,-1]));
m3=max(4.23*log10(decodedTI/originalTI));
%%shat
result=4.77-(0.992*m1)-(0.272*m2)-(0.356*m3);