9th International Conference on ICT for Sustainable Development

Authors - Sachin Pujappa Baluragi, Prajwalasimha S N, Aishwarya R Waghamare, Ashwini Jadhav
Abstract - In this chapter, an efficient image encryption/decryption algorithm using a combined Pseudo Hadamard transformation based pixel transposition and 2D Logistic map based pixel value saturation, is proposed. Due to strong inter-pixel correlation and bulk data capacity, multimedia cryptosystem needs two stages per round for encryption/decryption. Data set is considered from Computer Vision Group (CVG), nearly 96% pixel value difference is observed considering host and cipher images. Various noises are considered along with cipher image in the decryption process and it is observed that about 80% similarity between decrypted images to its host.