Introduction - If you have any usage issues, please Google them yourself
Image Despeckling described in the following paper:
Hossein Rabbani, Mansur Vafadust, Purang Abolmaesumi, Saeed Gazor: Speckle Noise Reduction of Medical Ultrasound Images in Complex Wavelet Domain Using Mixture Priors. IEEE Trans. Biomed. Engineering 55(9): 2152-2160 (2008)