Multichannel Watermarking for Color Images by Using Quantization Visibility Thresholds.
Kuo-Cheng LiuPublished in: IMVIP (2009)
Keyphrases
- color images
- color quantization
- watermark embedding
- gray scale
- visual masking
- color space
- quantization scheme
- digital images
- color information
- quantization error
- digital image watermarking scheme
- image processing
- color image segmentation
- watermarking scheme
- image watermarking
- color correction
- copyright protection
- watermarking algorithm
- spread spectrum
- impulsive noise
- single channel
- information hiding
- watermarking technique
- image authentication
- color components
- digital watermarking
- data hiding
- grayscale images
- contrast enhancement
- watermarking method
- jpeg compression
- directional filters
- multi channel
- fragile watermarking
- computer vision