输入：为需要压缩图象的名称,该主程序仅能构处理256灰度图,读者可以自行改编为RGB处理；ratio为压缩比率；level为小波分解的级数 输出:是解压完毕的图象数据矩阵-input : the need for image compression name, the main program can only handle 256 gray level structure, Readers can own adaptation of RGB; ratio of compression ra

此示意程序用DWT实现二维小波变换 1.调原始图像矩阵load wbarb 2.进行二维小波分解l=wfilters( db10 , l ) 3.分解结果显示figure(1) -This indicated procedures used to achieve two-dimensional wavelet transform DWT 1. Emphasized the original image matrix load wbarb 2. For two-dimen

此为比较奇异值分解的算法，QR分解法和分而治之法，并带入了Lapack的选择控制的接口程序，方便在matlab下实用这两种不同的算法进行比较-the algorithm about the decomposition of singular value of matrix comparing the different algorithm in the lapack QR and divide and conquer (DAC)