vchengxu

说明：  读取图像lena.tif，进行DCT变换，每个图像块保留10个DCT系数进行重构图像，比较重建图像与原始图像的差异。(Read the image lena.tif, the DCT transform, each image block of 10 DCT coefficients to retain the reconstructed image, reconstructed image compared with the original image differences.)

一阶熵、二阶熵和差分熵c++程序 求熵用的 (A first order, second order entropy and entropy difference entropy ofc++ program)

K-SVD是一种经典的字典训练算法，依据误差最小原则，对误差项进行SVD分解，选择使误差最小的分解项作为更新的字典原子和对应的原子系数，经过不断的迭代从而得到优化的解。(K-SVD is a classic dictionary training algorithm, based on the principle of minimum error, the error items SVD decomposition, choose to make the smallest error decomposition item as an updated dictionary of atoms and atomic corresponding coefficient, through constant iteration to obtain an optimized solution.)

pcm A 率13折线matlab算法。通过比较确定段落码，通过求模确定段内码。(pcm A rate of 13 line matlab algorithm. Determined by comparing the code sections, paragraphs identified by the modular code.)

对于粒子群算法和MATLAB学习者有很大帮助，非常好用的。(PSO algorithm and MATLAB for learners of great help, very useful.)

二维扩散方程紧致差分格式程序 误差（ti^2+h^4）(Compact difference scheme for two-dimensional diffusion equation program error (ti ^ 2+h ^ 4))

预测分类，针对目标样本进行训练比对，预测有可能发生的情况(Predictive classification, target training samples compared to predicted situation may occur)

adboost分类器 matlab源程序 用于训练样本 实现分类 (adboost classfication)

暴强Dijkstra算法求任意两点间最短路径(matlab程序)，一种求最大流的程序(Floyd shortest path algorithm MATLAB program, graph theory algorithms very practical)

matalab similink cuk斩波电路 仿真建模(matalab similink cukcircuit simiulation)