Apply phase information in RST image watermarking

被引：4

作者：

Zheng, D ^{[1
]}

Zhao, JY ^{[1
]}

机构：

[1] Univ Ottawa, Multimedia Commun Lab, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada

来源：

ICCE: 2003 INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS, DIGEST OF TECHNICAL PAPERS | 2003年

关键词：

D O I：

10.1109/ICCE.2003.1218893

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Based on Fourier-Mellin transform, this paper presents a novel digital image watermarking scheme that is invariant to rotation, scaling, and translation (RST). We embed the watermark in the log-polar mappings of Fourier magnitude spectrum of original image and use the phase information of the original image to rectify the watermark positions. The scheme avoids computing inverse log-polar mapping (ILPM), therefore preserves the image quality. Evaluations demonstrate that the scheme is invariant to rotation and translation, and sufficiently invariant to scaling transformation, and very robust to JPEG compression.

引用

页码：218 / 219

页数：2