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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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peParabImp
求解扩散方程的隐式格式MATLAB代码
(Implicit scheme for solving the diffusion equation MATLAB code)
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- 2011-06-03 23:27:53下载
- 积分:1
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2
说明: 完整的雷达定位仿真 研究雷达定位有参考作用 程序绝对好使(Complete radar simulation support multiple antenna position number absolutely so that program
)
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- 2011-11-26 15:21:00下载
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lasso算法,分为很多子类,可以单独运行(lasso algorithm)
- 2013-11-27 16:20:25下载
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planet_simulation
本程序模拟了火星、金星、水星等行星相对地球的运动轨迹,对于研究行星运动规律极有帮助。(This procedure simulated Mars, Venus, Mercury and other planets relative to Earth' s trajectory for the study of the law of planetary motion very helpful.)
- 2010-03-07 00:08:34下载
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MIMO系统为提高系统性能采用功率分配,这个程序主要采用注水发进行功率分配(MIMO system with power allocation to improve system performance, this program mainly for the power distribution of fat injection)
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STARChannelEstimation
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- 2007-04-13 17:23:17下载
- 积分:1