Work place: Division of Computer Engineering, Netaji Subhas Institute of Technology, Delhi, India-110078
E-mail: Rajeev.garg.it@gmail.com
Website:
Research Interests: Image Compression, Image Manipulation, Image Processing
Biography
Rajeev Kumar received his B.Tech. in Information Technology from Utter Pradesh Technical University, Lucknow, India and M.Tech. in Information Systems from Netaji Subhas Institute of Technology, Delhi University, India. He is pursuing his doctoral degree is at the Computer Engineering Department, Netaji Subhas Institute of Technology, Delhi University, Delhi, India. His research areas lie in the area of digital watermarking and image processing.
By Khushil K. Saini Satish Chand Rajeev Kumar
DOI: https://doi.org/10.5815/ijigsp.2013.06.04, Pub. Date: 8 May 2013
In this paper, we propose a new steganography technique using the snake scan ordering strategy. The proposed method hides the secret data that is an image in another image, known as the cover image. In this method, the pixel values of the secret image are organized in snake scan order, which are preprocessed to reduce their size. The resultant data is embedded into the Least Significant Bits (LSBs) of the pixels of the cover image. To minimize the error/distortion, the pixel values of the stegoimage are adjusted using Optimal Pixel Adjustment Process (OPAP). The performance of the proposed method is compared with that of the simple LSB substitution method, Chang et al. method, Thein & Lin method, and Chen method in terms of Peak Signal to Noise Ratio (PSNR). Our proposed method has higher PSNR in almost all cases.
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