Adaptive watermark mechanism for rightful ownership protection
Adaptive watermark mechanism for rightful ownership protection
复制标题
DOI：
10.1016/j.jss.2007.07.036
复制
发表时间：
2008-07-01
影响因子：
3.5
通讯作者：
Lin, Pei-Yu
中科院分区：
文献类型：
--
作者：
Chang, Chin-Chen;Lin, Pei-Yu
数字水印是用来保护图像的完整性和版权的。然而，传统的版权保护机制不够鲁棒，或者需要复杂的计算来将水印嵌入到宿主图像中。在这篇文章中，我们提出了一个自适应的版权保护方案，而不使用离散余弦变换（DCT）和离散小波变换（DWT）。该方法允许图像所有者通过阈值调整水印的强度，从而增强水印的鲁棒性。此外，我们的计划可以抵抗各种信号处理操作（如模糊，JPEG压缩，和噪声）和几何变换（如裁剪，旋转和缩放）。实验结果表明，在大多数情况下，我们的方案优于相关的工作。具体地说，我们的方案保留了数据无损的要求，所以它是适合于医学和艺术图像。(c)2007年爱思唯尔公司All rights reserved.
Watermarking is used to protect the integrity and copyright of images. Conventional copyright protection mechanisms; however, are not robust enough or require complex computations to embed the watermark into the host image. In this article, we propose an adaptive copyright protection scheme without the use of discrete cosine transformation (DCT) and discrete wavelet transformation (DWT). This novel approach allows image owners to adjust the strength of watermarks through a threshold, so that the robustness of the watermark can be enhanced. Moreover, our scheme can resist various signal processing operations (such as blurring, JPEG compression, and noising) and geometric transformations (such as cropping, rotation, and scaling). The experimental results show that our scheme outperforms related works in most cases. Specifically, our scheme preserves the data lossless requirement, so it is suitable for medical and artistic images. (c) 2007 Elsevier Inc. All rights reserved.