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matlab6.0图形图像函数，介绍应用matlab进行图形图像处理时应用到得函数(matlab6.0 graphic image function, introduced graphical application matlab image processing function, when applied to get)

说明：  实现了一个音频水印，包括嵌入，提取过程等。包括了原文件。(This source code realized an audio watermarking.It includes the embeding and extracting procedure.Also the original file is in it.)

不用多说了，和Hogh搭配使用检测直线的程序 直线Hough变换利用图像空间和Hough参数空间的点－线对偶性，把图像空间中的检测问题转换到参数空间。通过在参数空间里进行简单的累加统计，然后在Hough参数空间寻找累加器峰值的方法检测直线。(Needless to say, Hogh mix and the use of linear detection procedures Hough transform space and the use of images Hough parameter space The point-line duality, the image space detection switch to the parameter space. Through the parameter space for a simple cumulative statistics, then Hough parameter space for accumulator peak detected straight.)

中继选择算法。利用matlab进行通信中继的仿真(Relay selection algorithm)

本程序中得到的收端OFDM信号的频谱波形，是与其发端信号的排步有关的。在发端的 ％ 载波安排上，128个载波有前后各32个载波是null载波(如果这前后各32各载波是带外频段， ％ 那么理论上它们都应该是零！)，中间的64个载波是数据载波。这样的排步很明显就是一个 ％ 两边低，中间高的频谱形式。所以，收端也应该是这个轮廓。 (this process the resumption end of the spectrum OFDM signal waveform, with the originator of the signal further on the row. The originator% carrier arrangements, 128 of the carrier after a 32 carrier is null carrier (if it was around the 32 is the carrier frequency band. % then theoretically they should be zero!) the middle 64 carrier data carrier. This arrangement is obviously further 1% lower on both sides, in the middle of the spectrum form high. Therefore, the admission should end this profile.)

FIR低通滤波器设计，运行通过，通过改变滤波器参数，可以得到不同阶数的滤波器，加有随机噪声的语音信号通过滤波器后会有很大改善。(FIR low-pass filter design, to run through, can be obtained by varying the filter parameters, the number of filters of different orders, and added with the random noise of the speech signal through the filter will be greatly improved.)

M=512 原图像长度 N=64 K=8 I=zeros(M,M) J=zeros(N,N) BLOCK=zeros(K,K) 显示原图像 I=imread( f:ceshiyuanshitu.bmp ) figure imshow(I) xlabel( 原始图像 ) 显示水印图像 J=imread( f:ceshilogistic_nuaa64.bmp ) figure imshow(J) xlabel( 水印图像 ) 嵌入水印 tem=1 for p=1:N for q=1:N x=(p-1)*K+1 y=(q-1)*K+1 BLOCK=I(x:x+K-1,y:y+K-1) BLOCK=dct2(BLOCK) if J(p,q)==0 a=-1 else a=1 end BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01) BLOCK=idct2(BLOCK) I(x:x+K-1,y:y+K-1)=BLOCK end end 显示嵌入水印后的图像 figure imshow(I) xlabel( 嵌入水印后的图像 ) imwrite(I, f:ceshiembedded.bmp )

说明：  利用MATLAB来实现RTDX主机端的的应用(How to Write an RTDX Host Application Using MATLAB)

基于matlab/SIMULINK仿真,对开发环境和相关内容进行了介绍(Based on matlab/SIMULINK simulation, the development environment are described and related content)

说明：  RW法是一种基于图论的多刚体建模方法。RW方法建立万向轴模型（包括演示动画程序） _simu为主程序、_ini初始参数、_end画图 一门课的作业，希望有人能用得上哈：）(RW is a method based on graph theory modeling of multi-body methods. RW method to establish universal shaft model (including the animation program) _simu the main program, _ini initial parameters, _end drawing a course of work, hoping that someone that can use ha:))