Tangential_force

for fem matlab for solving all 2D and 3D problem

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基于遗传算法的TSP算法，寻找最短的遍历N个城市的路径(TSP algorithm based on genetic algorithm to find the shortest path traversal N cities)

基于物理光学透镜成像原理，利用MATLAB语言编写了仿真程序，制作了GUI界面。(Based on the imaging principle of physical optical lens, the simulation program is written in MATLAB language, and the GUI interface is made.)

张德丰基于MATLAB的系统分析与设计——小波分析+范例源码；详细介绍包括小波分析工具箱的的使用（范例代码），小波去噪，图像压缩，并范例实现。另外还有小波包分析技术的理论及应用(Zhang Defeng MATLAB-Based System Analysis and Design- wavelet analysis+ example source details, including the use of wavelet analysis toolbox (sample code), wavelet denoising, image compression, and examples of implementation. There is also the theory of wavelet packet analysis and application)

图像噪声消除,采用小波分析的方法，阈值法进行系数矫正(figure noise )

This package implements vectoriel quantization according Self Organizing Map paradigm It allows to : 1. generate a codebook training images set 2. reconstruct a test image according to the generated codebook 3. ute the Peak Signal to Noise Ratio (PSNR) between the test image and the image obtained after quantization 4. estimate execution time of this process

信息熵 离散无记忆信道容量的迭代计算 Shannon编码 Fano编码 Huffman编码(Discrete information entropy of the iterative calculation of the memory channel capacity Shannon coding Fano coding Huffman coding)

提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。(presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet transform characteristics, the original image and the watermark image tower decomposition, Multiresolution decomposition in the same frequency band to the embedded watermark. The method has also been used HVS, the algorithm is simple and effective. Experiments show that the algorithm can solve the watermark is visible with the robust nature of, common to have more attacks watermark robustness.)

说明：  基于卡尔曼滤波器的PID控制的matlab程序。(Kalman filter-based PID control)