HEs

这是最经典的平面图像质量评价的ssim实现，算法实现简单。(image quality assessment)

用自适应阈值法二值化图像，首先将图像分为几个子图像，在每个子图像中求得均值，用此均值二值化本子图(err)

整个数字水印的程序。包括峰值信躁比的计算，各种攻击后的水印提取等等。(entire digital watermarking process. Including peak impatient than the letter, after the attacks watermark extraction, and so on.)

说明：  基于opencv平台编写的单目相机标定程序，使用的张正友的方法，只要准备十二张单目相机拍摄的棋盘格的图片就可以标定出单目相机的焦距等参数，建立单目相机坐标系。可以用于机器视觉测量中，也可以用于双面相机标定的前一步，精度很高。(Based on the monocular camera calibration program compiled by the OpenCV platform, the method of Zhang Zhengyou is used to calibrate the focal length and other parameters of the monocular camera and establish a monocular camera coordinate system as long as 12 pieces of chessboard pictures taken by the monocular camera are prepared. It can be used in machine vision measurement, and it can also be used in the previous step of the calibration of the double-sided camera, with high precision.)

利用小波边缘检测算法实现对图像的边缘检测，效果良好。(Wavelet edge detection algorithm on edge detection with good results.)

利用霍夫曼编码对图像进行编码及解码，计算霍夫曼编码效率(huffman encode and decode)

基于radon的图像运动模糊参数估计程序，估计了模糊角度与模糊尺度，但过大的图片需先处理后才能使用(Radon-based image motion blur parameter estimation procedure, estimates of the fuzzy point and fuzzy scale, but the picture is too large to be treated before use)

matlab最小二乘法曲面拟合程序可以得到函数具体解析式(Matlab least squares surface fitting program can get the specific analytic expression of the function)

(cvpr)Matching Local Self-Similarities descriptor自相似描述子((cvpr)Matching Local Self-Similarities across Images and Videos)

说明：  可自选输入和参数的中值/均值/拉伸滤波，各项参数说明详见.m文件注释(Median/Average/Linear Stretch Filter)