Discrete wavelet transform （DWT） hasn＇t the properties of approximate shift invariance and more directionality. In order to overcome the shortcoming of the commonly-used denoisng methods, the image denoising method based on dual tree complex wavelet transform （DT-CWT） is proposed. The paper proposed a simple non-Gaussian bivariate probability distribution functions to model the statistics of wavelet coefficients of natural images. The model captures the dependence between a wavelet coefficient and its parents. The theoretical analysis and ...
