music-esprit

matlab一种基于混沌序列的魔方变换图像加密方案 重庆大学硕士论文(chaotic system，image encryption，magic-square algorithm， image-transmission)

由一张图像提取圆形的边缘,得到离散的点来拟合椭圆,并简单的去除噪声,得到椭圆中心坐标.(Extracted by a picture rounded edges to fit the discrete points oval, and simply remove noise, get the coordinates of the center of the ellipse.)

omp算法代码，实现图像处理的好算法，很适合自己做测试。(omp algorithm code, realize image processing algorithms, it is suitable to do their own testing.)

一些马氏距离也有坏点。这个程序是用MATLAB语言做的。如果你安装了该软件，则可按步骤下载并共享。(some bad points of m-distance .It was using matlab.So if you have installed matlab software,you can download and share it.)

CS重构算法OMP算法。matlab源代码，。(CS reconstruction algorithm OMP)

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

本程序为我自己编写的，能够实现用枚举法背包问题(This program written for my own, to achieve knapsack problem with the enumeration method)

使用GS理论简单实现相位重建的算法，图片包含在内(Simple Phase Reconstruction Using GS Theory)

这个文件简述了一种混合编程方法 基于组件对象模型(组件对象模型, COM),用Matlab VBA。 (The article introduced a hybrid programming method based on Component Object Model (Component Object Model, COM) with Matlab and VBA. )

Matlab数据可视化及程序设计，程序简单实用，适合初学者。(Numerical computation and symbolic computation, the program is simple and practical, suitable for beginners.)