J4

• 计算机科学 • 上一篇    下一篇

一种基于提升小波变换的数字图像隐藏方法

汪亚东1, 关玉景2, 邹 溪2   

  1. 1. 加拿大皇后大学数学与统计系, 金士顿 K7L 3N6;
  • 收稿日期:2003-05-05 修回日期:1900-01-01 出版日期:2004-01-26 发布日期:2004-01-26
  • 通讯作者: 关玉景

Method for image hidding based on lifting wavelet transform

WANG Ya-dong1, GUAN Yu-jing2, ZOU Xi2   

  1. 1. Department of Mathematics and Statistics, Queen's University, Kingston K7L 3N6, Canada;2. Institute of Mathematics, Jilin University, Changchun 130012, China
  • Received:2003-05-05 Revised:1900-01-01 Online:2004-01-26 Published:2004-01-26
  • Contact: GUAN Yu-jing

摘要: 针对人眼的视觉模型和小波包的分频能力, 给出 一种新的灰度图像数据嵌入方法, 嵌入图像可以达到原始载体的1/4, 通过调节尺度 因子α可使本方法用于数据隐藏和数字水印. 此法对一些图像处理(如JPEG压缩等)有一 定的鲁棒性. 实验结果显示, 此法对秘密信息有较好的恢复效果.

关键词: 信息隐藏, 电子水印, 提升, 小波变换

Abstract: Based on human vision and wavelet packets, we gave a me thod hiding gray digital image. The size of hidden image is 1/4 of that of origi nal image. This method can be applied to both hiding data and digital watermark by choosing an adaptive scale factor and it is robust for some image processing (such as JPEG compressing). From the given examples it is proved that this met hod is efficient.

Key words: information hidding, digital watermarking, lifting, wavelet transform

中图分类号: 

  • TP391