Digital-Image-Processing

2 stage decimator matlab code

matlab平台下的测试函数Rosenbrock，对于用来测试粒子群、遗传等智能算法的性能非常有用(matlab platform test function Rosenbrock, used to test for the PSO, the performance of genetic algorithms and other useful intelligence)

数学建模中基于matlab的偏最小二乘回归分析算法(Mathematical modeling matlab-based partial least squares regression analysis algorithm)

comsol mytihpysics最新版4.3a中射频模块中关于光学和光子晶体的源码(source on the optical and photonic crystals in the latest version of the COMSOL mytihpysics to 4.3a and RF module)

Matlab GUI图形交互，模拟IIR数字滤波器(Matlab GUI interactive graphics, analog IIR digital filter)

Image quality analysis using median and weiner filter finding the PSNR ratio

说明：  使用快速傅里叶逆变换，分析离散时间信号中频率分辨率和信号的样本数之间的关系，并通过不同的滤波器进行对比。(The relationship between the frequency resolution and the number of samples in the discrete-time signal is analyzed by using the inverse fast Fourier transform, and compared by different filters.)

Demonstrate rs decoding in frequency domain

抽取插值运算，实现信号的抽取，实现信号抽样频率等。(This is for students who is major in communication project.)

本文所做的主要工作为：研究了JPEG2000标准的原理和基本框架，对JPEG 2000标准的核心—小波变换压缩技术进行了分析研究，概要的介绍了小波理论。对EZW算法进行了详细分析和描述，包括零树的含义、结构及其扫描方法。并应用Matlab图像处理工具箱和小波分析工具箱对图像小波变换处理，并通过接口工具Mex实现在Matlab环境下对C程序EZW编码的调用，实现了应用零树小波编码算法对图像的压缩处理，简单地实现了对JPEG 2000的仿真。(The main work that this text do is:Studied the principle and basic frames of the JPEG2000 standard, to the center of JPEG 2000- Wavelet transform compress which had been analyzed and researched .Carried on the detailed analysis and descriptions to the calculate way of EZW, include zero-tree coding, structures and it’s scans method. In Turbo C environment using C language to simulate wavelet zero-tree coding algorithm, using Matlab image processing toolbox and wavelet analysis toolbox, and using interface tool Mex to implement transferring the C program in Matlab, and implement the image compress by wavelet zero-tree transform coding methodology,and supplely implement JPEG2000.)