Title :
DCT-based image watermarking using subsampling
Author_Institution :
DoCoMo USA Labs., San Jose, CA, USA
fDate :
3/1/2003 12:00:00 AM
Abstract :
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.
Keywords :
discrete cosine transforms; image coding; image sampling; watermarking; DCT-based image watermarking; discrete cosine transform; subimages; subsampling; Decoding; Discrete cosine transforms; Discrete wavelet transforms; Equations; Gaussian distribution; Pixel; Robustness; Signal mapping; Spread spectrum communication; Watermarking;
Journal_Title :
Multimedia, IEEE Transactions on
DOI :
10.1109/TMM.2003.808816
