Image zero-watermarking algorithm based on region of interest

ZHANG Li-bao; MA Xin-yue; CHEN Qi

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Image zero-watermarking algorithm based on region of interest

更新时间：2024-10-14

- Image zero-watermarking algorithm based on region of interest
- Vol. 30, Issue S2, Pages: 117-120(2009)
- 作者机构：
  
  北京师范大学信息科学与技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP309.7
- Published：2009
- 稿件说明：
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ZHANG Li-bao, MA Xin-yue, CHEN Qi. Image zero-watermarking algorithm based on region of interest[J]. 2009, 30(S2): 117-120.
DOI：

ZHANG Li-bao, MA Xin-yue, CHEN Qi. Image zero-watermarking algorithm based on region of interest[J]. 2009, 30(S2): 117-120. DOI：

摘要

结合ROI特性

提出一种新的水印算法。算法首先选择ROI区域

然后对图像进行小波变换并生成ROI罩

最后对ROI罩内的小波系数构造零水印。此外

新算法给出了零水印的检测算法。实验结果表明

当图像的ROI区域获得明显高于背景区域的解码质量时

新算法较其他不针对ROI的水印算法具有更好的顽健性

此外

由于采用零水印

保证了ROI中不会被加入任何干扰信息。

Abstract

Based on ROI

a new watermarking algorithm was proposed.First

ROI was selected.Then

the wavelet transform was executed and ROI mask was constructed.Finally

the zero-watermarking was designed for the wavelet coefficients in ROI mask.The experimental results show that the zero-watermarking is more robust in the new algorithm than others that are not designed for ROI when the ROI of image is decoded at higher quality than the background.Additionally

the new algorithm can ensure ROI not to be disturbed by the watermarking information because of the zero-watermarking.

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