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首页> 外文会议>FutureTech 2012;FTRA international conference on future information technology;International workshop on biological IT-system convergence;BITSC 2012;International workshop on computer images and its applications;CIA 2012;International workshop on mobile platform, computing and applications;MPCA 2012;International workshop on social computing, network, and services;SocialComNet 2012;Internaional symposium on digital forensics and information security;DFIS 2012;International workshop on IT service cloud computing;ISCC 2012;International conference on mobile, ubiquitous and intelligent computing;MUSIC 2012 >Data Embedding Scheme for Reversible Authentication
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Data Embedding Scheme for Reversible Authentication

机译：可逆认证的数据嵌入方案

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摘要

Many watermarking techniques were proposed for medical images. However, virtually all watermarking schemes introduce some small amount of irreversible distortion, making them unsuitable for certain medical and military imaging applications. This has led to considerable recent interest in developing lossless watermarking schemes. We propose such a lossless scheme that fully recovers the original image using a secure key, incurs low computational overhead. An image is divided into a grid of blocks, and the watermark is embedded in the least significant bits of the pixels in that block. The data required for authentication is produced by an XOR operation between binary pseudo-noise sequences and a hash function computed from the image. We compare our scheme to other recently proposed lossless schemes and show that it produces less perceptible image distortion.
机译：提出了许多用于医学图像的水印技术。然而，实际上所有的水印方案都引入了少量的不可逆失真，使其不适用于某些医学和军事成像应用。这导致最近对开发无损水印方案的兴趣很大。我们提出了一种无损方案，该方案使用安全密钥完全恢复了原始图像，从而降低了计算开销。将图像划分为块的网格，并将水印嵌入该块中像素的最低有效位。认证所需的数据是通过二进制伪噪声序列与从图像计算出的哈希函数之间的XOR操作生成的。我们将我们的方案与其他最近提出的无损方案进行了比较，并表明该方案产生的图像失真较小。

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