用matlab做的基于DCT变换的图像压缩源码，先把图像分成8X8 的子块，然后做DCT变换，再量化，在恢复重建图像

一个较为不错的图象的边缘检测的SOBEL的算法,直接可以进行特征的提取-A relatively good image SOBEL edge detection algorithms, can be characterized by direct extraction

MATLAB 给图像添加各种噪声：如椒盐噪声，高斯噪声、乘性噪声等等。-MATLAB add all kinds of noise to the image: If salt and pepper noise, Gaussian noise, multiplicative noise and so on.

the realization of Wiener filter

伪Zernike矩特征提取，Zernike矩特征提取，供参考，很有用-Pseudo-Zernike moment feature extraction, Zernike moment feature extraction, for reference, very useful

图像旋转的MATLAB文件，角度可以定义，例子中包含了M源程序以及转换的图片。-MATLAB file image rotation, angle can be defined, for example, contains M as well as the conversion of the image source.

数字水印作为一种将特殊信息嵌入媒体数据的技术,近年来已成为国内外研究的热点并有着广泛的应用前景,通常数字水印被应用于数字图像音频视频以及其他媒体产品上以进行版权保护和验证多媒体数据的完整性-Digital Watermarking as a special information technology embedded in media data, in recent years has become a hot research and has wide application prospect, usually digital watermarking has been applied to digital images audio video and other media products for copyright protection and verify the integrity of multimedia data

该程序可以实现图形的旋转，水平镜像，垂直镜像，缩放，剪切等-The program can realize the rotation of graphics, the level of the mirror, vertical mirror, zoom, shear, etc.

Description: A faster implementation of binary dilation and erosion. Our functions take advantage of MATLAB s decomposition of the structuring element but they may result much faster. Try to run example.m to see the speed improvement factor, changing the parameters.

画圆,里面可以写字,可移动-Circle, they can write, mobile

对图象进行预处理并进行Hough变换,然后求图象特征向量值-Preprocessing of image and Hough transform, image characteristics and then seek to Money