Digital halftoning with error diffusion

Details Digital halftoning with error diffusion Digital halftoning with error diffusion

1989-01-30

1991-09-24

Orsino, Joseph A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358455, 358443, H04N 140

Patent

active

050518445

ABSTRACT:
A halftoning method for creating a binary image from a continuous-tone image or computer generated graphics signal is improved by including the human visual blur function in a recursive error propagation algorithm so that perceived error rather than binary error is propagated.

REFERENCES:
patent: 4339774 (1982-07-01), Temple
patent: 4449150 (1984-05-01), Kato
patent: 4654721 (1987-03-01), Goertzel et al.
patent: 4667237 (1987-05-01), Yokomize
patent: 4668995 (1987-05-01), Chen et al.
patent: 4733230 (1988-03-01), Kurihara et al.
patent: 4811108 (1989-03-01), Namakura et al.
patent: 4811239 (1989-03-01), Tsao
patent: 4833546 (1989-05-01), Namakuba et al.
patent: 4876610 (1989-10-01), Ohsawa et al.
patent: 4878125 (1989-10-01), Katayama et al.
patent: 4920501 (1990-04-01), Sullivan et al.
M. A. Georgeson et al., "Contrast Constancy: Deblurring in Human Vision by Spatial Frequency Channels".
Article, "Digital Halftoning of Images", by Anastassiou & Pennington, IBM, Res. Dev., vol. 26, No. 6.

Affiliated with

Also associated with

Rating

Digital halftoning with error diffusion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital halftoning with error diffusion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital halftoning with error diffusion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1701107