DCT-based image watermarking using subsampling

A DCT-based image watermarking algorithm is described, where the original image is not required for watermark recovery, and is achieved by inserting the watermark in subimages obtained through subsampling.

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Bibliographic Details
Published inIEEE transactions on multimedia Vol. 5; no. 1; pp. 34 - 38
Main Author Chu, W.C.
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.03.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithms
Decoding
Discrete cosine transforms
Discrete wavelet transforms
Equations
Gaussian distribution
Multimedia
Pixel
Recovery
Robustness
Signal mapping
Spread spectrum communication
Watermarking
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Summary:A DCT-based image watermarking algorithm is described, where the original image is not required for watermark recovery, and is achieved by inserting the watermark in subimages obtained through subsampling.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1520-9210
1941-0077
DOI:10.1109/TMM.2003.808816