彩色图像psnr值计算，图像压缩编码后的峰值信噪比-Color image psnr values, image compression encoded PSNR

The Cross Bilateral filter can enhance the PSNR of multi focus images that is in image fuison. Bilateral filtering is a local, nonlinear and non- iterative technique which combines a classical low-pass filter with an edge stopping function that atten