Restoration of Continuous Tone Images from Digital Color Halftone Images Based on Fourier Analysis of Local Areas.
Johji TajimaMasato TsukadaPublished in: CGIV (2004)
Keyphrases
- continuous tone images
- fourier analysis
- halftone images
- error diffusion
- inverse halftoning
- lossless compression
- gray scale
- frequency domain
- data hiding
- black and white
- image quality
- original images
- image restoration
- image processing
- image segmentation
- visual quality
- compression ratio
- perceptual quality
- binary images
- human visual system
- gray images
- principal component analysis
- color images
- feature extraction