Fully phase-image encryption and watermarking using structured phase masks

Sonu Kumar Rao; Naveen K. Nishchal

doi:10.1364/DH.2023.HW5C.4

Optica Imaging Congress (3D, COSI, DH, FLatOptics, IS, pcAOP)
Technical Digest Series (Optica Publishing Group, 2023),
paper HW5C.4
•https://doi.org/10.1364/DH.2023.HW5C.4

Fully phase-image encryption and watermarking using structured phase masks

Sonu Kumar Rao and Naveen K. Nishchal

Digital Holography and Three-Dimensional Imaging 2023

Boston, Massachusetts United States
14–17 August 2023
ISBN: 978-1-957171-28-9

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Holographic Display + Optical Elements and Application (HW5C)

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S. K. Rao and N. K. Nishchal, "Fully phase-image encryption and watermarking using structured phase masks," in Optica Imaging Congress (3D, COSI, DH, FLatOptics, IS, pcAOP), Technical Digest Series (Optica Publishing Group, 2023), paper HW5C.4.

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Abstract

In optical cryptography, light beams are used because of inherent speed and parallel processing nature. This paper demonstrates a fully-phase image watermarking using structured phase masks in the fractional Fourier transform domain and discrete wavelet transform.

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