This paper presents a new denoising method in the wavelet domain, which aims to reduce the noise, preserving the structural features (like the discontinuities) and textural information of the scene. In this paper we propose the association of the Double Tree Complex Wavelet Transform, (DT-CWT) with a Maximum A Posteriori (MAP) filter named bishrink. The corresponding denoising algorithm is simple and fast. Some simulation results and comparisons prove the performance of the new algorithm.

Keywords: MAP-filter, Double tree complex wavelet transform, Sensitivity