Secure Data Hiding Technique using Secret Image Scrambling

Today secure data hiding is remaining as the demanding topic because of its advantages. Most of the things are delivering electronically during these days, so steganography fulfills this requirement by providing safe data hiding. In this paper, wavelet based secure data hiding is proposed. Initially, the secrete image is encrypted by using pixel scrambling operation with circular shift and swapping operation then the resultant image is added to the cover image. Scrambling process is applied up to N round. The resultant image picture quality has been improved by applying pixel-based correlation operation. The results show the strength of proposed technique. The proposed technique is more robust because the secret image is initially scrambled before embedding.