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arXiv 1502.01996cs.MM
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基于小波变换的压缩感知图像水印算法

Wavelet based Watermarking approach in the Compressive Sensing Scenario

Jelena Music, Ivan Knezevic, Edis Franca

摘要:

由于数字媒体的广泛分布和使用,一个重要的问题是数字内容的保护。数字水印技术已经有了很多的算法和技术,本文研究了图像的不可见水印过程。水印被创建为伪随机序列,嵌入到图像的特定区域中,使用Haar小波分解获得。一般来说,水印程序应该是强大的各种攻击过滤,噪声等。在这里,我们假设压缩感知的情况下,作为一种新的信号处理技术,可能会影响鲁棒性。本文的重点是在压缩感知攻击下,不同数量的可用图像系数的水印检测的可能性。用峰值信噪比(PSNR)对重建图像的质量进行了评价,实验结果证实了理论的正确性。

英文摘要:

Due to the wide distribution and usage of digital media, an important issue is protection of the digital content. There is a number of algorithms and techniques developed for the digital watermarking.In this paper, the invisible image watermark procedure is considered. Watermark is created as a pseudo random sequence, embedded in the certain region of the image, obtained using Haar wavelet decomposition. Generally, the watermarking procedure should be robust to the various attacks-filtering, noise etc. Here we assume the Compressive sensing scenario as a new signal processing technique that may influence the robustness. The focus of this paper was the possibility of the watermark detection under Compressive Sensing attack with different number of available image coefficients. The quality of the reconstructed images has been evaluated using Peak Signal to Noise Ratio (PSNR).The theory is supported with experimental results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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