-
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
-
quan-pai-lie-ju-zhen
全排列矩阵,依次输入exchange swap tianchongJ即可,若想修改全排列矩阵的大小,可在MATLAB中打开tianchongJ修改J和N。
(Permutation matrix, followed by the input exchange swap tianchongJ can, if you want to modify the size of permutation matrix can be modified in MATLAB to open tianchongJ J and N.)
- 2011-06-09 15:58:38下载
- 积分:1
-
Low-Pass-Filter
simple problem(sonar) low pass filter
- 2012-05-09 19:50:49下载
- 积分:1
-
memo_Saleh_dpd
this matlab code presents a memory polynommial predistorter and a saleh model for the power amplifier
- 2014-02-14 15:31:25下载
- 积分:1
-
OFDMsourceCode
用matlab仿真实现了25 kHz 带宽内同时传送总共48 kbit/s 的两路语音(每路速率9. 6
kbit/s) 和两路数据信息(速率分别为19. 2 kbit/s 和9. 6 kbit/s) , 仿真结果表明达到了较好的误码性能。并比较了4 种数字调制方式下O FDM 系统的误码性能。(using Matlab Simulation bandwidth of 25 kHz simultaneous transmission within a total of 48 kbit/s 2 Road Voice (rate of 9 per road. 6 kbit/s) and two road data information (rate of 19. 2 kbit/s and 9. 6 kbit/s), the simulation results indicate achieve a better BER. And comparison of four types of digital modulation mode O FDM system BER.)
- 2007-03-14 13:35:41下载
- 积分:1
-
weinerfilter
这个是用MATLAB编的一个维纳滤波器程序,内涵解释,对初学者会有帮助。(This is a Wiener filter program compiled using MATLAB, the connotation would help explain, for beginners.)
- 2012-05-14 22:27:35下载
- 积分:1
-
48pulse
this code is used to generate 48 pulse for renewable energy soures
- 2014-12-04 01:07:37下载
- 积分:1
-
64287612487617824
本文件为基于OMNeT_的Leach协议的仿真改进与研究(This document is based on the improvement and simulation of Leach agreement OMNeT_)
- 2014-12-14 16:42:53下载
- 积分:1
-
finalsentcodings
MATLAB FOR ADAPTIVE MODULATION IN MIMO OFDM FULL CODING COMPARISON FOR AWGN AND RAYLEIGH
- 2014-01-19 14:38:32下载
- 积分:1
-
imGeodesicDistance
Calculate geodesic distance
- 2012-02-09 16:22:39下载
- 积分:1