PICTURE ENCRYPTION SCHEME BY APPLYING WAVELET TRANSFORMATIONS: A COMPREHENSIVE SURVEY

Abstract

For correspondence, medical purposes or organizational uses, photographs are commonly stored and transformed via public media. The photographs are often taken from the remote area, so the protection of the data becomes the most significant matter of concern. The most convenient way of protecting the data (image) is to encrypt it at remote locations right after capturing the images from the sensors. To date, a great number of patents have been registered. We also covered all of the benchmarks and significant encryption patents. To ensure the security of photos at the time of transmission or storage, this document provides an improved secure encryption scheme. Due to their high computational overhead and design structure, there are various encryption algorithms proposed in recent days, most of which are not suitable for image encryption. The proposed method has a comparatively low computational overhead as it uses 2D DWT to decompose the image and chaotic maps to produce pseudo random sequence numbers (PRNS).