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dsakf
% 文件名:randlsbget.m
% 程序员:余波
% 编写时间:2007.6.25
% 函数功能: 本函数将完成提取隐秘于上的秘密信息
% 输入格式举例:result=( scover.jpg ,56, secret.txt ,2001)
% 参数说明:
% output是信息隐藏后的图象
% len_total是秘密信息的长度
% goalfile是提取出的秘密信息文件
% key是随机间隔函数的密钥
% result是提取的信息
function result=randlsbget(output,len_total,goalfile,key)
ste_cover=imread(output)
ste_cover=double(ste_cover)
% 判断嵌入信息量是否过大
[m,n]=size(ste_cover)
frr=fopen(goalfile, a )
% p作为信息嵌入位计数器将信息序列写回文本文件
p=1
% 调用随机间隔函数选取像素点
[row,col]=randinterval(ste_cover,len_toal,key)
for i=:len_toal
if bitand(ste_cover(row(i),col(i)),1)==1
fwrite(frr,1, bit1 )
result(p,1)
else
fwrite(frr,0, bit1 )
result(p,1)=0
end
if p==len_total
break
end
p=p+1
end
fclose(frr)
()
- 2007-06-28 16:08:04下载
- 积分:1
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2-dmusic
用MUSIC方法估计信号源的二维DOA,即对方位角和俯仰角进行估计。(MUSIC method estimates the signal source with a two-dimensional DOA, that is to estimate the azimuth and elevation.)
- 2011-06-23 20:33:35下载
- 积分:1
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PCA
PCA(主成分分析法)和ICA(独立成分分析法)的MATLAB源程序,他们是目前图像处理比较经典的特征提取方法-PCA (Principal Component Analysis) (matlab function of pca and ica of the signal)
- 2013-01-30 10:56:10下载
- 积分:1
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EXAMPLE
Demo for the Fractional-Order Chaotic Systems (FOChS) - functions
- 2013-08-19 05:03:21下载
- 积分:1
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MUSIC_TD
这个是时域MUSIC算法。希望对大家有用。(This is the time domain MUSIC algorithm. Hope to be useful.)
- 2013-02-28 14:51:45下载
- 积分:1
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good-code
清华大学张旭东老师《现代信号处理》课第二次大作业代码。高效正确地实现RLS算法。(This is an efficient and correct implementation of the RLS algorithm .This code is especially for the project of modern signal processing ,which is tought by Zhang Xudong in Tsinghua University.)
- 2014-12-17 15:21:31下载
- 积分:1
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irisonedemo
work in matlab, iris detection hamming distance
- 2013-10-22 09:16:31下载
- 积分:1
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race
说明: 在研究自主运动规划问题之前,首先需建立相对较为完整的自主运动规划体系,再由该体系作为指导,对自主运动规划的各项具体问题进行深入研究。本节将根据自主机器人的思维方式、运动形式、任务行为等特点,建立与之相适应的自主运动规划体系。并按照机器人的数量与规模,将自主运动规划分为单个机器人的运动规划与多机器人协同运动规划两类规划体系。(Before studying the problem of autonomous motion planning, it is necessary to establish a relatively complete system of autonomous motion planning, and then conduct in-depth study on the specific issues of autonomous motion planning under the guidance of this system. In this section, an adaptive autonomous motion planning system will be established according to the characteristics of autonomous robot's thinking mode, motion form and task behavior. According to the number and scale of robots, the autonomous motion planning system is divided into two types: single robot motion planning and multi robot collaborative motion planning.)
- 2021-04-29 15:58:43下载
- 积分:1
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LFM
线性调频信号雷达脉冲压缩仿真及程序,chirp信号的产生,压缩及效果(LFM singal simulation)
- 2021-04-12 16:48:56下载
- 积分:1
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PSD-raise_cos
包括抽样函数, 余弦函数, 升余弦函数, 滚降升余弦函数的频谱(Including the sampling function, cosine function or cosine function, roll-off spectrum raised cosine function)
- 2011-05-21 09:37:19下载
- 积分:1