標題: | Rotation, scaling, and translation resilient image watermarking with side information at encoder |
作者: | Day, ML Jou, IC Lee, SY 資訊工程學系 Department of Computer Science |
公開日期: | 2002 |
摘要: | We propose a rotation, scaling and translation (RST) resilient blind image watermarking technique by using Fourier-Mellin transform and informed coding, where watermark detection does not require the existence of the original image. Although the Fourier-Mellin invariant domain is recognized to be nearly RST invariant, which supposedly would make it an ideal space for watermark embedding, however the inverse Log-Polar map (ILPM) could severely destroy the embedded watermark. Therefore a very strong watermark has to be employed to survive the self-destruction process from ILPM, but in turn this leads to a poorly watermarked image. To overcome this problem we introduce the concept of informed coding by embedding a slightly weaker watermark into the image so that both transparency and robustness can be achieved. Experimental results demonstrate that the resulting watermark is robust to a variety of image processing attacks. |
URI: | http://hdl.handle.net/11536/29166 |
ISBN: | 3-540-00262-6 |
ISSN: | 0302-9743 |
期刊: | ADVANCES IN MULTIMEDIA INFORMATION PROCESSING - PCM 2002, PROCEEDING |
Volume: | 2532 |
起始頁: | 74 |
結束頁: | 81 |
顯示於類別: | 會議論文 |