And then,it is expounded in detail how to filter for reducing speckle in wavelet transform domain,while the information contained in sub-band images is utilized for detection edge and texture detail.

• 然后详细论述了在小波变换域中如何对相干斑噪声进行有效的滤波,同时利用小波细节子图像提供的信息来检测边缘和纹理细节;