DCT and DWT-Based Image Watermarking by Using Subsampling.
Min-Jen TsaiHsiao-Ying HungPublished in: ICDCS Workshops (2004)
Keyphrases
- image watermarking
- watermark detection
- digital watermark
- jpeg compression
- dct coefficients
- discrete cosine transform
- discrete wavelet transform
- spread spectrum
- watermarking algorithm
- digital watermarking
- image compression
- geometric attacks
- dct domain
- spatial domain
- lossy compression
- geometric distortions
- wavelet domain
- copyright protection
- transform domain
- watermarking technique
- additive noise
- digital image watermarking
- wavelet coefficients
- subband
- compressed domain
- digital images
- low bit rate
- watermarked image
- image data
- multiresolution
- feature vectors
- image processing