A Novel Color Image Watermarking Algorithm Based on QWT and DCT.
Shaocheng HanJinfeng YangRui WangGuimin JiaPublished in: CCCV (1) (2017)
Keyphrases
- watermarking algorithm
- color images
- dct coefficients
- watermark detection
- jpeg compression
- dct domain
- signal processing
- digital watermark
- image watermarking
- discrete cosine transform
- watermarking scheme
- wavelet domain
- gray scale
- spread spectrum
- jpeg images
- digital watermarking
- copyright protection
- image processing
- lossy compression
- geometric attacks
- watermarking technique
- spatial domain
- image authentication
- digital image watermarking
- transform domain
- multiscale
- image compression
- median filtering
- geometric distortions
- image blocks
- subband
- digital images
- feature vectors