Bit-Levels Encryption for RGB Telescope Images

Abstract

Digital image security is a main concern in network transmission especially with the involvement of sensitive data. With the rapid development of telecommunications, tons of digital images in various fields are transmitted throughout the network. This paper discusses the RGB bit-levels encryption algorithm for radio telescope imageries using Random Generation Number method. Each color model in an image (Red, Green and Blue) was encrypted by two levels of scrambling algorithms, namely Level I and Level II scrambling. The results show that, by evaluating the stability and scrambling degree, Level II scrambling algorithm is more reliable in scrambling the radio telescope images used in the present study.