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Histogram preserving QIM-based watermarking
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Li, Chang-Tsun and Li, Yue (2012) Histogram preserving QIM-based watermarking. University of Warwick. Department of Computer Science. (Unpublished)
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Abstract
Quantisation-based watermarking schemes are known to be strongly robust to noise and widely applied for image authentication. However, such schemes tend to create specific patterns in the histogram of the watermarked image, thus opening security gap for histogram analysis and attack. As such, a secure quantisation-based watermarking scheme should be histogram preserving. That is to say the original statistical characteristics of the histogram should be preserved in the watermarked image. In this paper, we propose a histogram preserving quantisation index modulation (HPQIM)-based watermarking, which can preserve the original statistical characteristics of the histogram of the original image after watermark embedding. This scheme originates from quantisation index modulation (QIM)-based watermarking scheme, but highly increases the security of QIM-based schemes. Meanwhile, the proposed HPQIM-based watermarking scheme can also achieve a lower embedding distortion than the QIM-based watermarking schemes.
Item Type: | Report | ||||
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Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Computer Science | ||||
Library of Congress Subject Headings (LCSH): | Digital images -- Watermarking | ||||
Publisher: | University of Warwick. Department of Computer Science | ||||
Official Date: | 2012 | ||||
Dates: |
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Number of Pages: | 23 | ||||
DOI: | CS-RR-448 | ||||
Institution: | University of Warwick | ||||
Status: | Not Peer Reviewed | ||||
Publication Status: | Unpublished | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Date of first compliant deposit: | 28 July 2016 | ||||
Date of first compliant Open Access: | 28 July 2016 | ||||
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