摘要
We propose and demonstrate an optical watermarking scheme using a digital holographic technique. The holographic watermark is constructed by an off-axis diffuse-type hologram and embedded into a cover image with appropriate weighting. Detection of the hidden mark is optically implemented using a VanderLugt correlator with the watermarked matched filter. Detected correlation is spatially separable and avoids interference from the cover image.
原文 | 英語 |
---|---|
頁(從 - 到) | 1-2 |
頁數 | 2 |
期刊 | Optical Engineering |
卷 | 44 |
發行號 | 1 |
DOIs | |
出版狀態 | 已發佈 - 2005 1月 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 原子與分子物理與光學
- 一般工程