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利用LSB算法去实现了电子水印技术。代码完全实现了嵌入以及提取, 算法同时包含了4种攻击算法以及利用psnr测量提取的水印和攻击后提取的水印,This algorithm describes digital watermark technique by using LSB. This code implement embedding and extraction. At the meanwhile, this algorithm includes 4 different kinds of att
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已知两个不同图像块亮度数据如下:
(1)分析DCT原理,采用DCT方法,编程并计算相应的DCT系数,分析系数分布特点。
(2)依据视觉特性分析量化表步长的分布特点,完成DCT系数量化。
(3)采用Z形扫描,实现输出数据的统计编码,形成Video stream。
(4)采用IDCT重建图像亮度数据,计算SAD大小,分析产生误差的原因及采用DCT进行数据压缩的原理。( )
(5)分别利用左上角1、3、6个系数重建图像,计算相应的SAD,并由
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基于LSB图像隐藏系统的设计与实现,LSB算法代码,信息隐藏攻击算法,DCT域的隐藏以及数字水印。-LSB based image hiding system design and implementation, LSB algorithm code, information hiding attack algorithm, DCT hiding and digital watermarking domain.
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图像的组成无非是一些字符串或者一些字节组成的字符串,然而,每一个字节数据位的重要度并不是一样的,两个相邻字节往往只有低位是不一样的。例如:00100110和00100111代表了两个不同渐变度的红色,但是就人眼是分辨不出来的。最低有效位LSB算法,就是利用这一点,达到图像压缩,或者数字水印的功能。-The composition of the image is nothing more than some number of bytes or string composed of string,
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图像隐藏。。将一副图像隐藏到另一副图像中
-Image hiding. . To hide an image to another deputy images
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This method is based upon the image hiding technic into another image using LSB algorithm called as Steganography.
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数字图像的信息隐藏方法。不可多得的优秀课件。-Digital Image Information Hiding. Outstanding courseware rare.
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基于插值融合的数字图像信息隐藏完整matlab源码-Interpolation-based integration of a complete digital image information hiding matlab source
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数字水印(digitalwatermarking)是一种信息隐藏技术,它的基本思想是在数字图像、音频或视频等数字媒体作品中嵌入秘密信息,以便保护数字作品的版权、证明作品的真实可靠性、跟踪盗版行为或提供作品的附加信息。-Digital Watermarking (digitalwatermarking) is a kind of information hiding technology, its basic idea is in the digital image, audio or video
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基于计算全息的半色图像信息隐藏,matlab实现,用于数字水印-CGH-based semi-color image information hiding
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steganography tool for hiding data in image using LSB hiding technique
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while reading the hidden text disorder them from the cover image
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在信息隐藏技术中使用matlab实现图像的非盲提取的m文件-The use of information hiding technology to achieve the image of the non-blind matlab extract m-files
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信息隐藏技术中使用matlab实现图像的盲嵌入m文件-Information hiding technology to achieve the image of the blind to use matlab embedded m file
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基于LFSR生成m序列的图像隐藏算法,利用线性插值的方法将经过异或的的图像隐藏在同样大小的一幅载体图像中-Based on LFSR generates m-series images hiding algorithm, using linear interpolation method will be through the exclusive or of the hidden images of the same size of a vector image
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Data hiding in the still image presets a variety of challenges that arises due to the way human visual system (HVS) works and the typical modifications that image undergoes. Additionally, still images priced a relatively small host signal in which to
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this code is used to do data hiding in image and then take it back ..........pandey
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This file Image stegenography is one of the best method of information hiding i.e. text in an image
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Secure image data hiding using mosaic method
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文件主要通过matlab实现图像的数据隐藏,以及相关优化代码(File is mainly achieved through MATLAB, image data hiding, and related optimization code)
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