Visual-cryptographic image hiding with holographic optical elements.
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DOI: 10.1364/oe.26.031995
Abstract: In this paper, we propose a visual-cryptographic image hiding method based on visual cryptography (VC) and volume grating optics. The secret image is converted to the encrypted visual keys (VKs) according to the normal VC… read more here.
Keywords: image hiding; image; cryptographic image; holographic optical ... See more keywords