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Watermarks encrypted in the cascaded Fresnel digital hologram by Shaogeng Deng; Liren Liu; Haitao Lang; Dong Zhao; Ximin Liu is a Engineering article available to read on EtoBox.

What is Watermarks encrypted in the cascaded Fresnel digital hologram about?

A cascaded Fresnel digital hologram (CFDH) is proposed, together with its mathematical derivation. Its application to watermarking has been demonstrated by a simulation procedure, in which the watermark image to be hidden is encoded into the phase of the host image. The watermark image can be deciphered by the CFDH setup, the reconstructed image shows good quality and the error is almost closed to zeros. Compared with previous technique, this is a lensless architecture, which minimizes the hardware requirement.

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Author

Shaogeng Deng; Liren Liu; Haitao Lang; Dong Zhao; Ximin Liu

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0030-4026)

Published

2007

Language

EN

Field

Engineering (Physical Sciences)