对输入图像进行预处理后提取目标轮廓，经过归一化处理的到目标形状的平移、尺度不变的链状表达，再通过小波变换进行多尺度度分析；引入Zernike 矩，运用Zernike矩的特性，实现小波表达的旋转不变性，解解决了小波变换对起始点的依赖。 -Preprocessing the input image to extract the target contour, after normalized to the translation of the target shape scale-invaria

用来进行非向下采样的轮廓波变换的。非常好用-for the non subsampled contourlet transformation intended to do denoising for image

轮廓波工具箱 基于轮廓波变换-contourlet tools

轮廓波变换的基本原理，对输入图像的进行轮廓波变换，并重构原始信号(The basic principle of contourlet transform, performing contourlet transform on the input image and reconstructing the original signal.)