Use contourlet transform and Wavelet transform de-noising processing of images, and a combination of noise reduction effect by comparison the PSNR. noise is included in the text. m file and mode of PSNR. m file. comments in program source code, detailed reference. by testing the code. Source code integrity, and can be used directly.
File list:
wave_and_contourlet_denoise
..........................\denoise_wavelet_and_contourlet transform.m
..........................\lena512.bmp

..........................\PSNR1.m