论文标题
基于局部空间疾病分析的自适应水印的硬件实施
Hardware Implementation of Adaptive Watermarking Based on Local Spatial Disorder Analysis
论文作者
论文摘要
随着互联网的越来越多使用和多媒体内容交换的易用性，对所有权的保护已成为一个重大问题。水印是为此目的的有效手段。在许多应用中，需要实时水印，这需要硬件实施低复杂性和鲁棒算法。在本文中，提出了一种自适应水印，该水标的使用不同的比特阶段中的嵌入来实现透明度和鲁棒性。分析了局部像素的局部疾病，以控制水印的强度。提出了一种新的低复杂性分析方法，并提出了其硬件植入。提出了一种嵌入方法，该方法在水印图像中导致降解较低。同样，提议的水印结构的性能通过管道结构改善，并在FPGA设备上进行了测试。结果表明该算法会产生透明且坚固的水印图像。 FPGA实现的综合报告说明了低复杂性硬件结构。
With the increasing use of the internet and the ease of exchange of multimedia content, the protection of ownership rights has become a significant concern. Watermarking is an efficient means for this purpose. In many applications, real-time watermarking is required, which demands hardware implementation of low complexity and robust algorithm. In this paper, an adaptive watermarking is presented, which uses embedding in different bit-planes to achieve transparency and robustness. Local disorder of pixels is analyzed to control the strength of the watermark. A new low complexity method for disorder analysis is proposed, and its hardware implantation is presented. An embedding method is proposed, which causes lower degradation in the watermarked image. Also, the performance of proposed watermarking architecture is improved by a pipe-line structure and is tested on an FPGA device. Results show that the algorithm produces transparent and robust watermarked images. The synthesis report from FPGA implementation illustrates a low complexity hardware structure.
