Generic Lossless Visible Watermarking-A New Approach
Generic Lossless Visible Watermarking-A New Approach
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DOI：
10.1109/tip.2010.2040757
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发表时间：
2010-05-01
影响因子：
10.6
通讯作者：
Tsai, Wen-Hsiang
中科院分区：
文献类型：
--
作者：
Liu, Tsung-Yuan;Tsai, Wen-Hsiang
提出了一种具有无损图像恢复能力的通用可见水印新方法。该方法基于使用图像像素值的确定性一对一复合映射来在封面图像上覆盖任意大小的各种可见水印。复合映射被证明是可逆的，这允许从带水印的图像无损地恢复原始图像。可以调整映射以产生接近于期望的可见水印的像素值。不同类型的可见水印，包括不透明单色和半透明全彩水印，作为所提出的通用方法的应用被嵌入。创建了两倍单调递增复合映射，并证明可以在带水印的图像中产生更独特的可见水印。还提出了通过参数和映射随机化的安全保护措施，以阻止攻击者恢复非法图像。还包括证明所提出方法有效性的实验结果。
A novel method for generic visible watermarking with a capability of lossless image recovery is proposed. The method is based on the use of deterministic one-to-one compound mappings of image pixel values for overlaying a variety of visible watermarks of arbitrary sizes on cover images. The compound mappings are proved to be reversible, which allows for lossless recovery of original images from watermarked images. The mappings may be adjusted to yield pixel values close to those of desired visible watermarks. Different types of visible watermarks, including opaque monochrome and translucent full color ones, are embedded as applications of the proposed generic approach. A two-fold monotonically increasing compound mapping is created and proved to yield more distinctive visible watermarks in the watermarked image. Security protection measures by parameter and mapping randomizations have also been proposed to deter attackers from illicit image recoveries. Experimental results demonstrating the effectiveness of the proposed approach are also included.