Description: 本文件中的源代码是关于如何将信息隐藏在图像中的-this document is the source code on how to hide information in the image Platform: |
Size: 103535 |
Author:et |
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Description: 将图像按位平面分解，然后在最低有效为嵌入一定的信息，达到数字隐藏的作用，是最原始的数字水印技术-image caput plane decomposition, and then embedded in the lowest effective for certain information, to hide the figures, is the most primitive digital watermarking technology Platform: |
Size: 908 |
Author:yu |
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Description: 本文件中的源代码是关于如何将信息隐藏在图像中的-this document is the source code on how to hide information in the image Platform: |
Size: 4299776 |
Author:et |
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Description: 将图像按位平面分解，然后在最低有效为嵌入一定的信息，达到数字隐藏的作用，是最原始的数字水印技术-image caput plane decomposition, and then embedded in the lowest effective for certain information, to hide the figures, is the most primitive digital watermarking technology Platform: |
Size: 1024 |
Author:yu |
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Description: 安全性很高的在jpg图片中隐藏信息的源码，能够保持1阶统计特性不变-High security in the jpg image to hide the source of information, able to maintain one-order statistical properties remain unchanged Platform: |
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Author:zhanglih |
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Description: 实现信息隐藏，将要隐藏的文本信息编码并隐藏到图像中，接收方使用相同密钥能够将隐藏信息提取-Realize information hiding, will be hidden and hide text message into image coding, the receiver use the same key can be hidden information extraction Platform: |
Size: 189440 |
Author:石培 |
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Description: 隐藏语音信号
信息隐藏于1994年的国际图像处理会议上(ICIP)正式提出,它通过信号处理的方法将隐藏信息嵌入到宿主(声音、图像、视频和文档等)中，具有不可感知性-只有通过专用的检测器才能获取该隐藏信息。同时隐藏信息并不会影响宿主的内容，具有很强的主观听觉或视觉上的欺骗性。-Hide voice signal information hiding in 1994, the International Conference on Image Processing (ICIP) formally proposed, through signal processing methods will be hidden information embedded into the host (sound, images, video and documents, etc.), can not be perceived sexual- only through a dedicated detector to obtain the hidden information. At the same time, hide information and will not affect the contents of the host, and highly subjective hearing or visually deceptive. Platform: |
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Author:weijie |
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Description: 对于BMP格式的图象,其前54个字节未文件头信息，从第55个字节开始到结束的所有数据，都是图像颜色数据。如果仅仅修改图像颜色数据而不修改文件头信息，则bmp图像大小不变且可以正常使用。当然，为了控制图像的质量，对于数据的植入方式，我们需要稍加斟酌。一个bmp图像要隐藏我们指定的信息，储存空间必不可少。为了保证信息植入前后图像的质量不发生明显的变化，我们只有把信息写到bmp图像颜色数据的每个字节的低位上。这样，每个字节的改变量不超过0Fh，对图像品质的影响非常小，用肉眼几乎分辨不出来。在源码包中有对比图，大家可以亲自对比验证。
原理即 ：用原来bmp图像颜色数据的相邻两个字节的低位来存放隐藏信息的一个字节的内容。
如隐藏信息的某个字节数据位为 3E ，bmp图像颜色数据两相邻字节的内容为：5F 27 ，处理后该相邻字节的内容变为53 2E。这样处理，一张mbp图像可以存放其自身长度2分之1大小的信息，效果不错。-The BMP format images, its former 54-byte file header information is not, from the first 55 bytes beginning to the end of all the data is color image data. If you only modify the data without modifying the color image file header information, then bmp image size unchanged and can be normal use. Of course, in order to control image quality, for the implantation of the way the data, we need a little discretion. A bmp image to hide our designated information, storage space is essential. Information in order to guarantee the quality of images before and after implantation no obvious change, we can only put information wrote bmp image color data for each byte on the low. In this way, each byte to change the volume of not more than 0Fh, the impact on image quality is very small, almost to tell with the naked eye do not come out. Source package has at contrast map, everyone can personally verify comparison.
Principle namely: bmp image with the original color data of adjacent two of the l Platform: |
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Author:lizhoujian |
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Description: 用matlab实现图像离散余弦变换（DCT）信息隐藏和信息提取-Implementation using matlab image discrete cosine transform (DCT) to hide information and extract information Platform: |
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Author:lqner |
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Description: steganography means we have to hide the information in the image for using encryption and decryption algorithm also. Platform: |
Size: 43008 |
Author:saravana |
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Description: 将目标信息隐藏在载体图像的相应位平面。可隐藏，可取出。-The target information hidden in the corresponding bit vector image plane. To hide, can be removed. Platform: |
Size: 410624 |
Author:陈若文 |
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Description: 普通二值图像中的信息隐藏及秘密信息的提取。从图像中选取固定的位置来隐藏要嵌入的秘密信息。隐藏效果不太好~-Ordinary binary image information hiding and extraction of secret information. Selected from a fixed location in the image to hide secret information to be embedded. Hide the effect is not very good ~ Platform: |
Size: 8192 |
Author:kayak |
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Description: lsb信息隐藏算法，实现在图像的最不重要位隐藏相关的信息-lsb information hiding algorithm, the most important position in the image to hide relevant information Platform: |
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Author:lulu |
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Description: This paper presents a novel algorithm of hiding
secret messages by applying mathematical lemmas and
information theory. The proposed algorithm can hide more
information with acceptable embedded rate and achieves
requirements of information hiding algorithm and simply
information extracting. The main idea is applying modern
algebra to solve the information hiding problem in multimedia.
In order to prevent some attacks on stganography, hidden
initial bits of image data pixels are chosen randomly. The
extracted information are achieved without the reference of the
original image and extracted keys. The experiment results
show that our approach is effective and reliable.-This paper presents a novel algorithm of hiding
secret messages by applying mathematical lemmas and
information theory. The proposed algorithm can hide more
information with acceptable embedded rate and achieves
requirements of information hiding algorithm and simply
information extracting. The main idea is applying modern
algebra to solve the information hiding problem in multimedia.
In order to prevent some attacks on stganography, hidden
initial bits of image data pixels are chosen randomly. The
extracted information are achieved without the reference of the
original image and extracted keys. The experiment results
show that our approach is effective and reliable. Platform: |
Size: 1606656 |
Author:Bluehouse |
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Description: 利用MATLAB实现在图像中嵌入和提取文本信息，最简单的LSB算法实现，自己写的可用。适合初学者-The realization of the embedded text information in the image using MATLAB, LSB algorithm to achieve the most simple, write their own use. Suitable for beginners Platform: |
Size: 720896 |
Author:su |
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Description: 利用 LSB 算法进行信息隐藏是在载体信号的空域进行的,它通过调整原始载体信息的最低几位来隐藏信息。文章首先简单叙述了B M P位图文件的文件格式, 然后根据 24位真彩色B M P位图格式与显示方式的特殊性,直接改变图像中像素的最后一位值来嵌入秘密文件,提出了一种对文字信息进行加密的有效方案。-LSB information hiding algorithm use of airspace carrier signal is carried by tuning the lowest bits of the original carrier of information to hide the information. Firstly, a brief description of the BMP bitmap file format, and then based on the particularity of 24 true color BMP bitmap format and display directly change the value of the last bit pixels in the image to embed secret document proposes a text information for effective program encrypted. Platform: |
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Author:陈明亮 |
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Description: 这是我本科毕业设计论文《基于混沌序列的加密图像隐藏技术的设计与实现》，就是把一张图片加密后隐藏在载体图像中，可以抵御各种攻击，用到了Matlab，里面包括开题报告，论文，可执行程序。本文系统介绍了混沌加密、信息隐藏技术。归纳了混沌加密、信息隐藏的分类、特性与应用，给出了混沌加密、信息隐藏的原理和基本框架以及其性能的评价方法，介绍了几种图像的攻击方法。实现了一种混沌加密和图像隐藏的方法。使用混沌加密对待隐藏图像进行加密后嵌入载体图像中，并对嵌入待隐藏图像的载体图像进行了几种攻击以验证其鲁棒性。本系统运用MATLAB编程实现对图像的混沌加密，运用LSB算法将加密后图像嵌入载体图像中，并能承受图像剪切，图像增亮，图像变暗，增加对比度，减低对比度，添加积性噪声，添加高斯噪声，旋转45度，直方图均衡化等一定程度的毁损和各种攻击检测，仍然能解密得到原图像，原图像清晰可辨，鲁棒性非常好。总之本文较好的实现了基于混沌序列的加密图像隐藏技术。-This is my graduation design thesis Design and implementation of chaotic sequence image hiding technique based encryption is encrypted to hide the picture in the carrier image, can withstand a variety of attacks, uses Matlab, which includes opening report, thesis, an executable program. This article describes the chaos encryption system, information hiding technology. Summed up the chaos encryption, information hiding classification, characteristics and application, given the chaotic encryption, information hiding principle and basic framework and its performance uation methods, and introduces the method of attack several images. It implements a chaotic encryption and hidden image method. After using Chaotic Encryption treat hidden image encryption embedded vector images, vector images and embedded image to be concealed several attacks carried out in order to verify its robustness. This system using MATLAB programming chaotic image encryption, use LSB algorithm encrypted image is em Platform: |
Size: 4505600 |
Author:sdgvf |
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Description: Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. For example, a sender might start with an innocuous image file and adjust the color of every 100th pixel to correspond to a letter in the alphabet, a change so subtle that someone not specifically looking for it is unlikely to notice it.
This code uses the Steganography technique to hide the data behind the picture for privacy reasons. Platform: |
Size: 123904 |
Author:ahmed |
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Search - hide the information in image