Image denoising method of combining Surfacelet transform and NSCT

In order to gaining virtue of Surfacelet transform and NSCT, this paper proposes image denoising method of combining two methods. This is conquer the defects of NSCT which has light nick in image edge and Surfacelet transform which has noise point in local image. This method not only has high SNR but also improves to keep image edge information. The experimental results indicate that de-noised image has not Gibbs - like phenomena of NSCT and nick effect. The method not only can get obviously better visual effect and high PSNR value, but also hold detail and texture of image effectually.