IU

this simulation is a way for watermarking and steganography with WOW

Calculated histogram of an image

基于MATLAB的光线反射、折射和透镜原理的仿真程序(MATLAB-based light reflection, refraction and lens theory simulation program)

it is matlab m file

用median 滤波除去图像中的pepper and salt 噪声，并且给给出了lena图像和coin图像的示例(use median filtering to remove the noise of pepper and salt， give examples of lena andcoin)

说明：  matlab 绘图指令应用及开关语句的应用举例，有需要的同学可以看看(matlab drawing instruction applications and the application of a switch statement example, students can see the need to)

说明：  本程序实现了通信原理中的平顶抽样与恢复，有代码与结果(This procedure implements the communication theory in the flat sample and recovery, with code and results)

根据小波的分解算法与重构算法来实现小波的分解与重构(Algorithm based on wavelet decomposition and reconstruction algorithm to achieve the wavelet decomposition and reconstruction)

MATLAB函数参考 MATLAB函数参考 MATLAB函数参考(MATLAB function index MATLAB function index.doc MATLAB function index.doc)

这是标准谱减算法和小波阈值降噪方法，虽然效果不太好，但是作为经典降噪方法，还是有很高的参考价值，也是此类文献引用最多的方法。(This is the standard spectral subtraction and wavelet thresholding method of noise reduction, although results are not good, But as a classic noise, or a high reference value, such literature is the most used method.)