pcnn

该程序采用总变差方法去除图像噪声，希望大家喜欢(the procedure used to remove the deteriorating image noise, hope you like)

基于DCT的jsteg图像隐写及分析算法，MATLAB实现。 JSteg的算法主要思想是将秘密消息嵌入在量化后的DCT系数的最低比特位上，但对原始值为O、1的DCT系数不进行嵌入。提取秘密消息时，只需将载密图像中不等于0、l的量化DcT系数的LSB取出即可。(The main idea of the JSteg algorithm is to embed secret messages in the lowest bit of the quantized DCT coefficients, but the DCT coefficients of the original values are O and 1 are not embedded. When extracting secret messages, only the LSB of the quantized DCT coefficients not equal to 0 and l in the encrypted image can be taken out.)

说明：  基于标记的分水岭算法，弥补了传统分水岭算法存在的过分割问题。(Marker-based watershed algorithm makes up for the over-segmentation problem of traditional watershed algorithm.)

可对灰度及彩色图像进行压缩及解压缩，通过变量名可以实现基于不同方式（多级树集合分裂spiht，ezw,stw,wdr等）的压缩，形如wcompress( c ,X,SAV_FILENAME,COMP_METHOD)(The wcompress command performs either compression or uncompression of grayscale or truecolor images.)

一个交互式程序，利用Hough变换检测圆。允许人工选择圆半径。(An interactive process, the use of Hough transform circle detection. Permit artificial selection radius.)

实现六自由度运动学逆解算法，汽车课设货车Matlab驱动力图程序，对信号进行频谱分析及滤波。( Six degrees of freedom to achieve inverse kinematics algorithm, Car class-based truck driver trying to Matlab program, The signal spectral analysis and filtering.)

用单阈值三种方法实现肺野分割的Matlab程序(A single threshold value of three methods of achieving lung field segmentation of the Matlab program)

Kaiming He的导向滤波算法的源代码(Guided filter source code Kaiming He)

图像质量标准，psnr及相关系数，很实用(Image quality standards, psnr and correlation coefficients, it is practical)

用matlab实现的c均值聚类算法，用于图像分割，分割效果很好(Matlab achieved with c-means clustering algorithm for image segmentation, segmentation well)