WU Ya-dong, SUN Shi-xin. A New Hybrid Image De-noising Algorithm Based on 2D Wavelet Shrinkage and Nonlinear Diffusion[J]. Acta Electronica Sinica, 2006, 34(1): 163-166.
WU Ya-dong, SUN Shi-xin. A New Hybrid Image De-noising Algorithm Based on 2D Wavelet Shrinkage and Nonlinear Diffusion[J]. Acta Electronica Sinica, 2006, 34(1): 163-166.DOI:
It is important for improving the image quality to study adaptiv filter algorithm.In this paper
we study the relations and differences between nonlinear diffusion and 2D Haar wavelet shrinkage de-noising
and explain that nonlinear diffusion is superior to Haar wavelet shrinkage in essence.Afterwards
a hybrid de-noising algorithm
based on 2D Haar wavelet shrinkage and total variation (TV) diffusion
is given
which is a tradeoff between restoration quality of images and computing complexity.This algorithm applies TV diffusion to low frequency part of image decomposed by Haar wavelet
and shrinks the wavelet coefficient.Some experiment results show that this hybrid algorithm has the better general performance.