Image Denoising Based on Maxima Child Node Dependence Coefficients in Wavelet Domain
Zhihui Wei · Jisuanji gongcheng · 2009
Wavelet coefficients of real signal have strong relations, while the dependence of coefficients of noise is more weaker.On the other hand, large wavelet coefficients contain the information of image edge.Considering the relationship of intrascale and maxima coefficients, two new dependence coefficients are proposed.Experimental results show that the new denoising method performs better both in denoising and preserving texture, compared to the traditional denosing metohd based ondependence coefficients.