APSCC 2008 – Proceedings of 3^rd IEEE Asia-Pacific Services Computing Conference, Yilan, Taiwan, 9-12 December 2008.

RGB Intensity Based Variable-Bits Image Steganography

Mohammad Tanvir Parvez and Adnan Abdul-Aziz Gutub

College of Computer Sciences & Engineering

King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

{tparvez, gutub}@kfupm.edu.sa

Abstract

In this paper, we present a new algorithm for RGB image based steganography. Our algorithm introduces the concept of storing variable number of bits in each channel (R, G or B) of pixel based on the actual color values of that pixel: lower color component stores higher number of bits. Our algorithm offers very high capacity for cover media compared to other existing algorithms. We present experimental results showing the superiority of our algorithm. We also present comparative results with other similar algorithms in image based steganography.

Keywords

Steganography, RGB image, cryptography, information hiding.