Watermarking in halftone images with parity-matched error diffusion.
Jing-Ming GuoSoo-Chang PeiHua LeePublished in: Signal Process. (2011)
Keyphrases
- halftone images
- error diffusion
- data hiding
- error correction
- inverse halftoning
- gray scale
- image quality
- error diffused images
- continuous tone images
- digital images
- watermarking scheme
- halftoning algorithm
- black and white
- gray level
- human visual system
- least mean square
- frequency domain
- original images
- visual quality
- high frequency
- watermarking algorithm
- image data