A Digital Watermarking Algorithm of Color Image based on Visual Cryptography and Discrete Cosine Transform.
Yanyan HanWencai HeShuai JiQing LuoPublished in: 3PGCIC (2014)
Keyphrases
- watermarking algorithm
- dct coefficients
- discrete cosine transform
- barcode
- jpeg compression
- signal processing
- dct domain
- jpeg images
- transform domain
- image compression
- color images
- image watermarking
- spread spectrum
- wavelet domain
- digital watermarking
- filter bank
- watermarking scheme
- lossy compression
- computer vision
- spatial domain
- black and white
- copyright protection
- multiresolution
- pattern recognition
- halftone images
- watermarking technique
- compressed domain
- input image
- high resolution
- image processing