NFD technique for efficient and secured information hiding in low resolution images

Authors:
S. N. Sivanandam;C. K. Gokulnath;K. Prasanna;S. Rajeev
Affiliations:
Department of Computer Science & Engineering, PSG College of Technology, Coimbatore, India;Department of Computer Science & Engineering, PSG College of Technology, Coimbatore, India;Department of Electronics & Communication Engineering, PSG College of Technology, Coimbatore, India;Department of Electronics & Communication Engineering, PSG College of Technology, Coimbatore, India
Venue:
ICDCIT'04 Proceedings of the First international conference on Distributed Computing and Internet Technology
Year:
2004

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Abstract

A new steganography algorithm that supports transmission of huge information with minimal embedding is proposed This approach uses the Newton's Forward Difference (NFD) Technique for mapping the text file/s onto a low resolution image file A polynomial function is derived to represent the mapping of the text bits with the bit positions on the host image file This polynomial is represented as bits and is embedded in the image file that is transmitted The bit replacements made in the host image file are negligible compared to those in the existing embedding techniques.