首页> 外文期刊>International journal of digital crime and forensics >Geometrically Invariant Image Watermarking Using Histogram Adjustment
【24h】

Geometrically Invariant Image Watermarking Using Histogram Adjustment

机译:使用直方图调整的几何不变图像水印

获取原文
获取原文并翻译 | 示例
           

摘要

In this article, a blind image watermarking scheme, which is a robust against common image processing and geometric attacks is proposed by adopting the concept of histogram-based embedding. The average filter is employed to low-pass pre-filter the host image. The watermark bits are embedded into the histogram of the low-frequency component and the template bits are embedded in the high-frequency residual. The embedding is performed by adjusting the value of two consecutive histogram bins. Furthermore, a post-quantization is employed after the embedding round to improve robustness. All pixel modifications incurred are based on the human visual system (HVS) characteristics. As a result, a good tradeoff between robustness and imperceptibility is achieved. Experimental results reported the satisfactory performance of the proposed scheme with respect to both common image processing and geometric attacks.
机译:本文采用基于直方图的嵌入概念,提出了一种对普通图像处理和几何攻击具有鲁棒性的盲图像水印方案。使用平均滤波器对主机图像进行低通预滤波。水印位嵌入到低频分量的直方图中,模板位嵌入到高频残差中。通过调整两个连续的直方图bin的值来执行嵌入。此外,在嵌入回合之后采用后量化以提高鲁棒性。引起的所有像素修改均基于人类视觉系统(HVS)特性。结果,实现了鲁棒性和不可感知性之间的良好折衷。实验结果表明,该方案在常见图像处理和几何攻击方面均具有令人满意的性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号