Image watermarking based on invariant regions of scale-space representation
Image watermarking based on invariant regions of scale-space representation
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DOI：
10.1109/tsp.2006.870581
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发表时间：
2006-04
影响因子：
5.4
通讯作者：
J. Seo;C. Yoo
中科院分区：
文献类型：
--
作者：
J. Seo;C. Yoo
提出了一种新的基于图像不变区域的基于内容的图像水印方法。不变区域是通过几何变换而变形的自适应图像块。研究了三种不同的基于图像尺度空间表示的不变区域检测方法。在每个不变区域，根据区域的形状进行几何归一化后嵌入水印。通过将水印与不变区域绑定，可以很容易地获得抵抗几何变换的能力。实验结果表明，该方法对几何变换、裁剪、滤波和JPEG压缩等图像处理步骤具有较好的鲁棒性。
This paper proposes a novel content-based image watermarking method based on invariant regions of an image. The invariant regions are self-adaptive image patches that deform with geometric transformations. Three different invariant-region detection methods based on the scale-space representation of an image were considered for watermarking. At each invariant region, the watermark is embedded after geometric normalization according to the shape of the region. By binding watermarking with invariant regions, resilience against geometric transformations can be readily obtained. Experimental results show that the proposed method is robust against various image processing steps, including geometric transformations, cropping, filtering, and JPEG compression.