2Ramin Eslami, Hayder Radha. Wavelet-based contourlet transform and It's application to image coding[C]//IEEE International Conference on Image Processing. Singapore, 2004: 3189 - 3192.
3Do M N, Vetterli M. The contourlet transform: an efficient direetional multiresolution image representation[C]// IEEE Trans. on Image Processing. USA: Urbana Champaign, 2004.
4Donoho D L . De- noising by soft - thresholding[J ]. IEEE Trans. Information Theory, 1995, 41(3) : 613- 627.
5Donoho D L, Wavelet Thresholding W V D. A 10 - minute[C]// Int. Conf. on Wavelets and Applications, Toulouse. France, 1992.