将watson的DCT视觉模型计算出来，能够得到每个8*8块的系数的JND值- calculate watson s vision model,we can get the JND of every 8*8 s coefficients.

图像质量评价方法-Wpsnr 采用HVS的图像相似度准则计算WPSNR 下面的MATLAB程序计算两幅图像的加权峰值信噪比。相比常用的PSNR而言，考虑到HVS(human visual sytem)的影响。-Image quality uation method of image-Wpsnr similarity criteria using HVS computing program MATLAB WPSNR below the weighted peak signal

PSNRHMA matlab code 基于HVS的PSNRHMA和PSNRHA代码(matlab code of PSNRHMA and PSNRHA for image quality assessment)