2138993c71ff

说明：  编程实现图像DCT高通、低通滤波器并与傅立叶变换做比较(Programming image DCT high pass, low pass filter and compared with the Fourier transform)

同过matlab来实现数字图像处理中常用的bm3d的去噪方法(Been achieved with digital image processing matlab commonly used bm3d Denoising)

TVL1重建从混合压缩采样，rice大学泊松分布图像重建与全变分正规化的代码(Note: (1)Fore small-scale data, hybrid sampling consists of Bernoulli random sampling and low-resolution sampling (TVL1_HCS) (1)Fore large-scale data, hybrid sampling consists of Fourier radial sampling and low-frequency sampling (TV_RecPF) Copyright (C) 2010 Xianbiao Shu, Computer Vision and Robotics Lab, University of Illinois at Urbana-Champaign. Acknowledgement: RecPF (Rice University) PDCO (Stanford University) Twister (MIT) Reference: X. Shu, N. Ahuja, Hybrid Compressive Sampling via a New Total Variation TVL1, In Proceedings of ECCV 2010. Usage: >> run_me_first >>[Im_rec, PSNR_est1,PSNR_est2] = TVL1L2_HCS_test( Ball1_32.bmp , 0.35,3) >>[Im_rec, PSNR_est1,PSNR_est2] = TVL1L2_HCS_test( Ball1_32.bmp , 0.35,3) >>[Im_rec, PSNR1, PSNR2, G_error, Ratio] = TV_RecPF_test( Chest.png , 5, 10, 0, 1e-10, 0) )

说明：  一种基于JPEG的密写方法，通过修改标准量化表，将秘密信息嵌入中频系数的最低两个比特位(Realization of a steganographic method based upon JPEG and Quantization table modification. )

本程序用三边测量法来计算未知节点坐标且假设用于定位的锚节点位于等边三角形的三个顶点上。(This program uses trilateration to calculate the coordinates of unknown nodes and assume the anchor node for positioning in the equilateral triangle of three vertices.)

说明：  Wavelet Packet Decomposition details and codes

一个用MATLAB编的图像效果，丘比特之箭穿双心哦(A series of images using MATLAB effect, Cupid wear double heart oh)

SIFT特征提取程序，matlab编写。SIFT是图像上的某种特征，具有尺度，光照，甚至仿射不变性，广泛的用于图像拼接，目标检测，目标跟踪等应用中。(SIFT descriptor)

ofdm ber using matlab for qpsk

matlab程序开发波浪模拟源程序Wave Simulation Program Development matlab source code(Wave Simulation Program Development matlab source Wave Simulation Program Development matlab source code)