ifft_fitri

contourlet变换的mmatlab工具包 (the contourlet transform the mmatlab of Kit)

preconditioned conjugate gradient

说明：  鸡群算法，采用matlab编写，里面附有注释(Chicken colony algorithm, written in MATLAB, with notes)

LSB隐藏 最低有效位隐藏算法,就是8:1嵌入(Least significant bit LSB hide hiding algorithm is embedded 8:1)

FFT编程实例 进行FFT变换，显示频谱图 (FFT transform FFT programming examples show that the spectrum graph)

学习matlab，用c语言读wav格式的必备资料；自己写的寻找一组数据的峰值点程序，提取信号包络的程序，小波工具箱(Learning matlab, using c language read wav format necessary information their search for a set of data written in the peak-point program, extract the signal envelope of the process, wavelet toolbox)

利用PDE神经网络进行图像复原，较好的保留了源图像的边缘。(The use of PDE neural network for image restoration, the better to retain the edge of the source image.)

说明：  图论的相关MATLAB CODE 非常好用(grBase- find all bases of digraph grCoBase- find all contrabases of digraph grCoCycleBasis- find all independent cut-sets for a connected graph grColEdge- solve the color problem for graph edges grColVer- solve the color problem for graph vertexes grComp- find all components of graph grCycleBasis- find all independent cycles for a connected graph ...)

classification Réseau de neurones

包含了巴特沃斯滤波器的处理，属于数字信号处理的一部分(Includes the processing of the Butterworth filter, part of the digital signal processing)