phaN_time

本程序利用奇异值分解对3通道彩色图像进行压缩分解，具体步骤如下： 压缩过程： 1. 选取子图像大小K值，把图像分解成M×M个子图像，IMG(s),s=1,2,…, M2，其中M=N/K，原始图像IMG大小为N×N。 2. 计算这M2个子图像的平均值average，对每幅子图像减去均值图像得到新图像。 3. 计算相关矩阵R，其元素定义为 。 4. 计算R的特征值与特征向量，计算每幅子图像与最大特征向量的内积，便得到编码，即压缩后的图像。 (This procedure using singular value decomposition of 3-channel color image compression decomposition, concrete steps are as follows: compression process: 1. Select the sub-image size K value, the image is decomposed into M × M sub-image, IMG (s), s = 1, 2, ..., M2, in which M = N/K, the original image IMG size N × N. 2. M2 calculate the average of sub-image average, for each sub-image minus the new images mean images. 3. Calculation of correlation matrix R, defined as its elements. 4. Calculation of the characteristics of R value and eigenvector calculated each sub-image with the largest eigenvector of the inner product, they will have to code, that is, the compressed images.)

java和matlab混合编程的应用：在java中调用matlab(java and mixed Matlab Application Programming : java Calling Matlab)

3维的FDTD的matlab实现，无毛刺，mur差分法。pml。(3-dimensional FDTD)

利用遗传算法求解旅行商问题 旅行商问题，即TSP问题（Travelling Salesman Problem）是数学领域中著名问题之一。假设有一个旅行商人要拜访n个城市，他必须选择所要走的路径，路经的限制是每个城市只能拜访一次，而且最后要回到原来出发的城市。路径的选择目标是要求得的路径路程为所有路径之中的最小值。 (Traveling salesman problem using genetic algorithm traveling salesman problem, namely, the problem TSP (Travelling Salesman Problem) is one of the famous field of mathematics. Suppose a business trip to visit n cities, he must choose the path to go, pass through the restriction is to visit each city only once, and finally go back to the original departure city. Path selection objective is to get the path distance to the minimum value among all paths.)

常用图像质量评价方法的Matlab代码，其中有ssim + mse + psnr + qilv。(Image quality assessment method used Matlab code, which include ssim+ mse+ psnr+ qilv.)

自己觉得很不错的一个matlab 处理音频信号的一段程序,主要功能是对音频信号波形的处理以及幅度的调制()

详细给出了8dpsk系统的 误码率计算的matlab程序 并绘出了其误码率曲线(detailed 8dpsk given the BER calculation of Matlab procedures and draws its error rate curve)

用于计算电位。采用有线差分法迭代实现。显示出图像(Used to calculate the potential. Difference method using an iterative wired.)

these code implement convolutional coder and decoder used in LTE mobiles. this code used in 4G mobiles release 8.

Library for LSB Steganography in Images