Image Spread Spectrum Watermark Technique Based on Digital Holography and Ridgelet Transform

A novel image watermarking algorithm based on digital holography and ridgelet transform was designed by taking the advantage that ridgelet transform domain is a most suitable representation of image’s linear outline edge features. Firstly, the image was divided into blocks, and each block was transf...

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Bibliographic Details
Published inApplied Mechanics and Materials Vol. 58-60; pp. 1953 - 1958
Main Authors Song, Guo Xiang, Huang, Jian Ping
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.06.2011
Subjects
Finite Ridgelet Transform
Digital Holography
Spread Spectrum Modulation
Blind Extraction
Robust
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Summary:A novel image watermarking algorithm based on digital holography and ridgelet transform was designed by taking the advantage that ridgelet transform domain is a most suitable representation of image’s linear outline edge features. Firstly, the image was divided into blocks, and each block was transformed by finite ridgelet transformation. Secondly, the digital holography watermark that is got with the spread spectrum technique is embedded into the most energetic coefficients of ridgelet . A correlation function is used in the watermark detection process and the original image is not required.Experimen result show the watermark is robust to noise,medial filtering and JPEG2000 lost compression.By comparating respectively with paper[4] and paper[5],the result shows the proposed algorithm is more superior to them.
Bibliography:Selected, peer reviewed papers from the 2011 International Conference on Information Technology for Manufacturing Systems (ITMS 2011), Shanghai, China, May 7-8, 2011
ISBN:303785149X
9783037851494
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.58-60.1953