Article ID Journal Published Year Pages File Type
852816 Optik - International Journal for Light and Electron Optics 2007 4 Pages PDF
Abstract

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.

Related Topics
Physical Sciences and Engineering Engineering Engineering (General)
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