fft_compare

Code for Power-Law Transform Algorithm, in Chapter two of image processing book(Gonzalez).

粒子群优化工具箱，采用Matlab编写的PSO程序工具箱(Development Notes for psopt toolbox Future plans (in no particular order): * Performance improvement: Automatically check for existence of constraints, skip boundary-checking if unconstrained. * Performance improvement: Automatically vectorize fitness functions supplied by user, if not already vectorized. * Performance improvement: Detect and eliminate dependent (i.e. redundant) linear constraints. * Performance improvement: Automatically choose "penalize" versus "soft" constraint handling method based on type of constraints in problem. If any equality constraints exist, using "penalize", otherwise default to "soft". If "soft", automatically switch to "penalize" if more than a given percentage of particles (initial or interim) are infeasible. * Feature: An output function defined by options.OutputFcns that can save current swarm state in a file which can be reloaded later as a problem structure, in case of a system crash. * Feature: Implement multiobjective optimization option)

说明：  基于MP（matching pursuit匹配追踪）算法的信号的稀疏分解，实现简单信号的稀疏分解(Based on MP (matching pursuit matching pursuit) algorithm sparse decomposition, sparse decomposition of simple)

直方图均衡化 直方图的均衡化可以使图像的像素灰度值动态范围变大，增强图像的对比度看起来更清晰。上图经过直方图均衡化方法处理后不再特别暗淡，其直方图反映出来的灰度的概率分布也相对比较均匀(Histogram equalization)

Codificacion turbo y convolucional, Comunicacion y codificacion digital

MATLAB仿真在通信与电子工程中的应用（第二版）实例(Examples of MATLAB simulation applications in communications and electronic engineering (second edition))

说明：  图像处理程序，包括图像锐化，图像边缘检测等(Image processing procedures, including image sharpening, image edge detection)

Time Domain Method for Calculating Difference on Arrival of Sound.

说明：  matlab学习手册 介绍matlab的使用方法 适合初学者(matlab)

vsp seismic inversion