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Proceedings Paper

A review on “A novel technique for image steganography based on block-DCT and Huffman encoding”
Author(s): Rig Das; Themrichon Tuithung
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Paper Abstract

This paper reviews the embedding and extraction algorithm proposed by “A. Nag, S. Biswas, D. Sarkar and P. P. Sarkar” on “A Novel Technique for Image Steganography based on Block-DCT and Huffman Encoding” in “International Journal of Computer Science and Information Technology, Volume 2, Number 3, June 2010” [3] and shows that the Extraction of Secret Image is Not Possible for the algorithm proposed in [3]. 8 bit Cover Image of size is divided into non joint blocks and a two dimensional Discrete Cosine Transformation (2-D DCT) is performed on each of the blocks. Huffman Encoding is performed on an 8 bit Secret Image of size and each bit of the Huffman Encoded Bit Stream is embedded in the frequency domain by altering the LSB of the DCT coefficients of Cover Image blocks. The Huffman Encoded Bit Stream and Huffman Table

Paper Details

Date Published: 14 March 2013
PDF: 5 pages
Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 87687D (14 March 2013); doi: 10.1117/12.2009430
Show Author Affiliations
Rig Das, Don Bosco College of Engineering and Technology (India)
Themrichon Tuithung, North Eastern Regional Institute of Science and Technology (India)

Published in SPIE Proceedings Vol. 8768:
International Conference on Graphic and Image Processing (ICGIP 2012)
Zeng Zhu, Editor(s)

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