Secure and Efficient Medical Image Transmission by New Tailored Visual Cryptography Scheme with LS Compressions

Introduction

Chung-Ping (2005), Shortt .A.E (2006) and Cheng .H (2000) discussed a secret sharing scheme suitable for encrypting colour images and the required colour shares were obtained during encryption by operating at the bit-levels . Perfect reconstruction was achieved by the decryption module using only logical operations. The author paper has invented two approaches for integrating encryption with multimedia compression systems which included selective encryption and modified entropy coders with multiple statistical models. This can be examined for the limitations of selective encryption using cryptanalysis, and provide examples that use selective encryption successfully. Martin .K., (2009), Qiu-Hua Lin (2002) and Zuo-Dian Chen (1999) have been presented a biometric encryption system that addressed the privacy concern in the deployment of the face recognition technology in real-world systems. In particular, they focused on a self-exclusion scenario (a special application of watch-list) of face recognition and proposed a novel design of a biometric encryption system deployed with a face recognition system under constrained conditions. Shujun Li (2008) and Sudharsanan, (2005) have proposed a system which uncovers a new image scrambling (i.e., encryption) scheme without bandwidth expansion which is based on two-dimensional discrete prolate spheroidal sequences. A comprehensive crypt-analysis was given on that image scrambling scheme, showing that it is not sufficiently secure against various crypto graphical attacks including cipher text-only attack, known/chosen-plaintext attack, and chosen-cipher text attack. Detailed cryptanalytic results suggested that the image scrambling scheme could be used to realize perceptual encryption but not to provide content protection for digital images.