% 文件名:randlsbget.m % 程序員:余波 % 編寫時間:2007.6.25 % 函數功能: 本函數將完成提取隱秘于上的秘密信息 % 輸入格式舉例:result=( scover.jpg ,56, secret.txt ,2001) % 參數說明: % output是信息隱藏后的圖象 % len_total是秘密信息的長度 % goalfile是提取出的秘密信息文件 % key是隨機間隔函數的密鑰 % result是提取的信息 function result=randlsbget(output,len_total,goalfile,key) ste_cover=imread(output) ste_cover=double(ste_cover) % 判斷嵌入信息量是否過大 [m,n]=size(ste_cover) frr=fopen(goalfile, a ) % p作為信息嵌入位計數器將信息序列寫回文本文件 p=1 % 調用隨機間隔函數選取像素點 [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)
標簽: randlsbget result scover 2007
上傳時間: 2015-11-10
上傳用戶:yzhl1988
可進行開戶,存款,取款以及查詢余額的操作,并動態的調節利率的大小。 或以一般用戶的身份(user)登錄,進行自身密碼的修改,業務的辦理。
標簽:
上傳時間: 2015-11-17
上傳用戶:GHF
It can also accept a number of ftp connection (multithreaded), and with most of the commercial ftp server functions. Server supports all basic ftp orders and to provide a simple user interface management, virtual directory support. This article comes from shrimp o
標簽: multithreaded connection commercial ftp
上傳時間: 2013-12-17
上傳用戶:拔絲土豆
演示Kruskal算法和Prim算法 集合的并,元素查找的操作及應用 說明: 代碼均在vc++6.0環境下編譯均通過 在非VC++6.0環境下編譯請去掉頭文件 windows.h 和函數 end()
上傳時間: 2013-12-17
上傳用戶:偷心的海盜
郵件系統是Linux網絡應用的重要組成,一個完整的郵件系統包括三個部分:底層操作系統(Linux Operation),郵件傳送代理(Mail Transport Agent,MTA),郵件分發代理(Mail Delivery Agent,MDA),郵件用戶代理(Mail User Agent,MUA)。 Postfix是一個非常優秀的MTA,她素以高效、安全的特點而著稱。Postfix是作者在UNIX上所見過的MTA中在反垃圾郵件(Anti- Spam或Anti-UCE)方面做得最好的一個,甚至有很多公司在Postfix代碼的基礎上進行二次開發而推出反垃圾郵件網關產品。MTA的反垃圾郵件功能,實際上就是在MTA處理過程中對會話進行過濾。這個過濾不但過濾了發往自身的垃圾郵件,而且還防止了自身被惡意利用發送垃圾郵件。Postfix 實現了目前所有主要的MTA過濾技術。postfix是Wietse Venema在IBM的GPL協議之下開發的MTA(郵件傳輸代理)軟件。和Sendmail相比Postfix更快、更容易管理、更靈活、更安全。
上傳時間: 2015-11-25
上傳用戶:dapangxie
在QuartusII中使用AHDL語言編寫一個RS232串行數據通信接口,要求設計輸入輸出端口,要求能提供的接收端口正確地接收。其中1bit作為start位,8bit作為數據,1bit作為end位。
上傳時間: 2013-12-19
上傳用戶:huyiming139
FLASH文件系統的源碼,Flash memory is a nonvolatile memory, which allows the user to electrically program (write) and erase information. The exponential growth of flash memory has made this technology an indispensable part of hundreds of millions of electronic devices. Flash memory has several significant differences with volatile (RAM) memory and hard drive technologies which requires unique software drivers and file systems. This paper provides an overview of file systems for flash memory and focuses on the unique software requirements of flash memory devices.
上傳時間: 2015-11-29
上傳用戶:問題問題
Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your End-users to edit their own sound files. Voice recognition and voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility
上傳時間: 2013-11-30
上傳用戶:水中浮云
As a result of additional product testing and evaluation, some specifications published in the S3C2440A User s Manual, Revision 0.01, have been changed. These changes are described in detail in the Revision Descriptions section below.
標簽: specifications additional evaluation published
上傳時間: 2015-11-30
上傳用戶:coeus
Contents * Introduction * Installation * SmartPool 1.5 * Features from earlier releases * Features expected in future releases * System Requirements * User Documentation * Source * Java Doc
標簽: Introduction Installation SmartPool Contents
上傳時間: 2015-12-02
上傳用戶:開懷常笑