DCT+DWTmatlab数字水印代码

风云3号卫星投影转换工具，envi中使用，很实用。(FY-3 satellite projection conversion tool, very useful)

图像质量评价，计算两幅图像的保真性，鲁棒性 ，结构相似性 (Image quality assessment，calculate the fidelity ，robust and structural similarity of the image，)

说明：  彩色图像分割，灰常不错。This function implements kmeans clustering on an input RGB (m x n x 3) image. The user inputs at least two inputs: IMGIN and NCLUSTERS, and this function will step through an interactive color segmentation using kmeans clustering. It is interactive in that the user will be prompted to click-define the target colors in the segmentation.(This function implements kmeans clustering on an input RGB (m x n x 3) image. The user inputs at least two inputs: IMGIN and NCLUSTERS, and this function will step through an interactive color segmentation using kmeans clustering. It is interactive in that the user will be prompted to click-define the target colors in the segmentation.)

压缩感知CS——采用小波变换进行稀疏表示，高斯随机矩阵为观测矩阵，重构算法为OMP算法，对256*256的lena图处理，比较原图和OMP算法在不同采样比例(0.74、0.5、0.3)下的重构效果，并各运行50次，比较算法性能PSNR和每次的运行时间 (Compressed sensing CS- using wavelet transform as sparse representation, Gaussian random matrix as the observation matrix and OMP algorithm as the reconstruction algorithm. Compare lena figure and the reconstruction results using OMP algorithm at different sampling ratio (0.74,0.50.3),then each runs 50 times, compare the performance of PSNR and each running time)

说明：  一种人脸识别方法,是利用眼睛虹膜进行识别(A face recognition method is the use of iris identification)

能计算一幅噪声图像的加权峰值信噪比，以评价各种图像去噪方法的效果(Can calculate an image of the weighted noise PSNR to evaluate the effect of image denoising methods)

说明：  培养学生综合利用Matlab解决专业问题的能力 GUI设计+图像处理 基于数字图像处理，设计实现一个自然场景下公路交通限速标志分割和识别的程序。要求系统具有界面，并实现以下功能： 1）读入自然场景下包含交通标志的图像； 2）对图像进行预处理； 3）限速交通标志的分割； 4）交通标志区域的定位。 5）对限速标志中的数字进行分离和识别。(MATLAB basic programming experiment 5)

用于matlab图像处理,计算向量均值C，协方差m。 [C,m]=covmatrix(X)(Calculate vector mean C, covariance M.)

使用MATLAB实现基于等距离图象拼接的嵌套程序1(The use of MATLAB-based image stitching equidistant nested procedures 1)

计算机图形学 c语言实现的直线段裁剪算法(Computer graphics c language to achieve a straight line segment clipping algorithm)