Butterworth

用levionson_durbin算法求解lpc winner滤波器的最优系数并求预测误差(Levionson_durbin algorithm using lpc winner of the optimal filter coefficients and prediction error for)

高斯金字塔分解，matlab实现。高斯金字塔分解，matlab实现。高斯金字塔分解，matlab实现。(Gasussian pyramid decomposition using matlab tool.Gasussian pyramid decomposition using matlab tool.)

Function to calculate the principal curvatures on a triangular mesh. Approximations of curvature are based on local (N=1) neighborhood elements and vertices. Note: Directions of curvatures aren t calculated appropriately. Will post an updated version once this is implemented. Note that calculations at vertices with few adjacent triangles, and hence few adjacent vertices, are expanded to a greater neighborhood. Reference: 1) Chen and Schmitt (1992) Intrinsic surface properties from surface triangulation 2) Dong et al. (2005) Curvature estimation on triangular mesh, JZUS This code makes use of routines: buildInverseTriangualtion.m & removeDO.m initially written by: David Gringas. He is gratefully acknowledged

针对嵌入水印后的二值图像，利用其频域特性检测隐藏信息。(embedded watermark of two binary images, using its frequency domain characteristics of detecting hidden messages.)

programme d optimisation et document pdf

可以将TS流中的PES信息内的PTS位置标定(TS stream can be within the PTS PES position calibration information)

CtpIF1005 (20100419)期货数据2010年4月16日(CtpIF1005 (20100419) futures data for April 16, 2010 )

matlab产生均匀 高斯 锐利等分布并画出直方图(using matlab to get random)

傅里叶变换和小波变换重建图像的比较效果，这个程序可以用来实现四个要求：1、FFT和WT重建效果比较；2、通过改变小波来比较重建效果；3、通过改变分解层数来比较重建效果；4、通过改变大系数个数来比较重建效果。其中还有一个计算PSNR的程序(the comparative effect of reconstruction image by Fourier transform and wavelet transform 。 the program can be used to achieve the four requirements: 1, FFT, and WT reconstruction effect 2, by changing the wavelet to compare the reconstruction effect 3, by changing the decomposition layers to compare the reconstruction effect 4, by changing the number of large coefficient of comparative reconstruction results. Including a procedure of calculating PSNR )

fastica 独立成分分析的matlab代码(Independent Component Analysis FastICA matlab code)