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2009
IEEE

Double Embedding In The Quantization Index Modulation Framework

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Double Embedding In The Quantization Index Modulation Framework
In this paper, we perform double embedding in the quantization index modulation (QIM) framework where a single coefficient is modified twice, using two quantizers, to embed two bits. The motivation behind substituting single embedding with double embedding in the QIM framework for a certain steganographic scheme is to increase its hiding rate without significantly increasing the embedding distortion introduced and the stego scheme's detectability against steganalysis. We empirically determine the best way to couple the double embedding framework with our error correction framework that uses repeat accumulate (RA) coding. For moderate noise levels, the use of double embedding is seen to be significantly advantageous over single embedding.
Added 10 Nov 2009
Updated 26 Dec 2009
Type Conference
Year 2009
Where ICIP
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