A collection of functions is presented which includes 2nd generation wavelet decomposition and reconstruction tools for images as well as functions for the computation of moment invariants. The wavelet schemes rely on the lifting scheme of Sweldens.

矩不变图像阈值分割方法，分割速度快，效果还不错-moment-preserving principle

针对标准均值滤波存在的问题,提出自适应均值滤波算法。算法首先计算窗口的四阶累积量和二阶中心矩并确定噪声 点阈值 然后根据窗口内噪声点个数自适应调整滤波窗口,自适应计算权值 最后对噪声点逐点滤波。该方法既能有效去除图 像噪声点,又能较好保持图像细节。论文最后给出实验和分析,结果表明该方法是有效的-Standard mean filter exists, adaptive mean filtering algorithms. The algorithm calculates the wind

利用非线性结构张量处理一些图形问题，能够有效的解决和优化现成的处理方法-In this article, we introduce nonlinear versions of the popular structure tensor, also known as second moment matrix. These nonlinear structure tensors replace the Gaussian smoothing of the classical structure te