A new visual cryptography scheme for color image using sliding puzzle technique

Visual cryptography is a method for protecting image-based secrets that has a computation-free decoding process. In this paper we propose a new color visual cryptography scheme. In visual cryptography the decipher can be performed by human visual system (HVS) without any complex process, providing high security. Our proposed method suggested a way to encrypt a color image using symmetric key encryption procedure. The proposed method is applied on several images and showed good result without any distortion. The algorithm proposed by this scheme reduces a considerable time for encryption and decryption in a much easier way and ensures the lossless transmissions of images.

Kalyan Das, Aromita Sen and Samir Kumar Bandyopadhyay
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