SIFT

thid file is svm matlab code for use you

基于混沌理论的图像解密算法，希望对研究图像加密解密的人员有帮助。(Based on chaos image decryption algorithm ,i hope it will be helpful. )

BOOT PI CLOSE LOOP CONTOLLER

Sep protocol in wireles sensor network

this file is a matlab program wich contain a filtering tests

提供一种求解最优哈密尔顿的算法---三边交换调整法，要求在运行jiaohuan3（三交换法）之前，给定邻接矩阵C和节点个数N，结果路径存放于R中。(Hamilton provides an optimal algorithm for solving triangular exchange--- Adjustment Act to require running jiaohuan3 (c exchange) before the adjacency matrix C, given the number of nodes N, the results of the path stored in R,.)

传输速率与码元宽度关系的matlab程序(Transmission rate and the width of the relationship between code element in matlab)

A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.

CONVERT IMG TO CURVE IN MATLAB

用matlab读取.dxf文件。本站原有代码dxf2coord_20.m中对于圆弧只能读出其圆心坐标及半径，缺少圆弧起始角及终止角，并不能在应用中实际用起来。修改后可以读出圆弧的起始角和终止角(the script can offer start angle and end angle of an arc,which are unable to access in an earlier script dxf2coord_20.m 。)