Abstract—This paper presents a novel watermarking mechanism for digital media that embeds a recognizable pattern into the spatial domain and an invisible image into the frequency domain. Undoubtedly, visible watermarking is important for protecting online resources from unauthorized reproduction. Lossless compression of encrypted sources can be achieved through SPIHT coding. For encrypted real-world sources, such as images, the key to improve the compression efficiency is how the source dependency is exploited. Lossless compression of encrypted color images can be achieved through arithmetic encoder. For encrypted real-world sources, such as images, the key to improve the compression efficiency is how the source dependency is exploited. This is color image encryption method where image is encrypted by specific rule that is rearrangement of image pixels. In this paper, we present color Image encryption and decryption by using partition and scanning pattern which is related to scan approach.

Index Terms—Encrypted color images, SPIHT coding lossless compression, Image encryption and decryption

Cite: M Ranganayaki, Nithya Jeevanand and W Nancy, "AN EFFICIENT COLOR IMAGE ENCRYPTION AND LOSSLESS COMPRESSION SYSTEM USING SPIHT ARITHMETIC ENCODER," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 1, No. 1, pp. 235-238, March 2015.