...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Pattern recognition letters >An adaptive prediction-error expansion oriented reversible information hiding scheme
【24h】

An adaptive prediction-error expansion oriented reversible information hiding scheme

机译：面向自适应预测误差扩展的可逆信息隐藏方案

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Data hiding in digital images can be used in secure communication, copyright protection, and etc. For some important images, such as medical and military images, the original images must be recovered after extracting the embedded data, because distortions are unacceptable for these kinds of images. In this paper, we propose a reversible data hiding method based on prediction-error expansion. Each pixel of the cover image, excluding the first row and the first column, is predicted by its top and left neighboring pixels in the raster-scanning order. The relationship between the prediction error and the pre-deter-mined threshold decides whether the current pixel is embeddable or not. Since the proposed prediction process provides small prediction error, our method can achieve high embedding rate and good visual quality of the stego image by the expansion of prediction error. During the procedure of extraction and recovery, the same prediction process is conducted, and then the embedded secret data and the cover image can be recovered correctly. The histogram squeezing technique is utilized to prevent underflow and overflow problems. Experimental results show that the proposed method provides better performance than some other methods.
机译：隐藏在数字图像中的数据可用于安全通信，版权保护等。对于某些重要图像，例如医学和军事图像，必须提取出嵌入的数据后才能恢复原始图像，因为这些类型的图像不可接受失真。图片。本文提出了一种基于预测误差扩展的可逆数据隐藏方法。封面图像的每个像素（不包括第一行和第一列）均由其顶部和左侧的相邻像素按光栅扫描顺序进行预测。预测误差和预定阈值之间的关系决定了当前像素是否可嵌入。由于所提出的预测过程提供了较小的预测误差，因此我们的方法可以通过扩大预测误差来实现隐身图像的高嵌入率和良好的视觉质量。在提取和恢复过程中，进行相同的预测过程，可以正确地恢复嵌入的秘密数据和封面图像。直方图压缩技术用于防止下溢和溢出问题。实验结果表明，该方法具有比其他方法更好的性能。

著录项

  • 来源
    《Pattern recognition letters》 |2012年第16期|2166-2172|共7页
  • 作者

    Chuan Qin; Chin-Chen Chang; Li-Ting Liao;

  • 作者单位

    School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China,Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan;

    Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan,Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan;

    Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    reversible data hiding; prediction-error expansion; embedding rate; visual quality;

    机译：可逆数据隐藏;预测误差扩展;嵌入率视觉品质;

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