Performance and analysis of high capacity Steganography of color images involving Wavelet Transform

This paper proposes a modified and simple method for high capacity Steganography in case of color images. This algorithm is usually based on the wavelet fusion technique which was not attempted for color images and it proves to be a simplest method than other techniques or algorithms for color images. Even though it uses transform domain technique which only provides robustness against attacks and eavesdropping and it is known that spatial domain techniques usually meet the capacity and quality requirements. In this paper the transform domain technique (Wavelet Transform) is used to attain high capacity along with security and maintains the quality of the cover image which acts as the key feature of this work. This improvement in the capacity-quality tradeoff is analyzed and proved experimentally in this paper and various image quality parameters have been evaluated to prove the above. (C) 2015 Elsevier GmbH. All rights reserved.