Correlation-based watermarking for halftone images.
Ming Sun FuOscar C. AuPublished in: ISCAS (2) (2004)
Keyphrases
- halftone images
- data hiding
- inverse halftoning
- spread spectrum
- watermarking technique
- error correction
- high capacity
- information hiding
- black and white
- digital images
- spatial domain
- gray scale
- error diffusion
- original images
- watermarking scheme
- continuous tone images
- watermarking algorithm
- image quality
- visual quality
- copyright protection
- binary images
- gray level
- image processing
- direct binary search