Correlation-based watermarking by a digital holographic technique

Chau Jern Cheng; Li Chien Lin

doi:10.1117/1.1831191

Correlation-based watermarking by a digital holographic technique

Chau Jern Cheng^*, Li Chien Lin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1-2
Number of pages	2
Journal	Optical Engineering
Volume	44
Issue number	1
DOIs	https://doi.org/10.1117/1.1831191
Publication status	Published - 2005 Jan
Externally published	Yes

Keywords

Digital holography
Optical correlators
Watermarking

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Engineering

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10.1117/1.1831191

Cite this

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title = "Correlation-based watermarking by a digital holographic technique",

abstract = "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.",

keywords = "Digital holography, Optical correlators, Watermarking",

author = "Cheng, {Chau Jern} and Lin, {Li Chien}",

note = "Funding Information: This work was supported by the National Science Council of the Republic of China, Taiwan, under Contract No. NSC93-2215-E-027-013.",

year = "2005",

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AU - Lin, Li Chien

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PY - 2005/1

Y1 - 2005/1

N2 - 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.

AB - 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.

KW - Digital holography

KW - Optical correlators

KW - Watermarking

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Correlation-based watermarking by a digital holographic technique

Abstract

Keywords

ASJC Scopus subject areas

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