Image processing apparatus capable of eliminating moire pattern

Details Image processing apparatus capable of eliminating moire pattern Image processing apparatus capable of eliminating moire pattern

1988-08-25

1990-01-09

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358451, 358453, H04N 140, H04N 146

Patent

active

048931950

ABSTRACT:
When an original comprised of a plurality of areas different half tone images is read, any one of the areas is designated at first. A magnification rate of projection for eliminating moire pattern is set and the image of the original is projected on the image sensor at this magnification rate to be converted into electrical data. The electrical data is electrically reduced at a reducing magnification rate which is in correspondence with the magnification rate of projection. Among the reduced electrical data, only those for the designated area are half tone processed and outputted, and the image of that area is printed on a paper. Thereafter, designation of other areas is carried out and the electrical data is outputted by similar processing. The images of these areas are printed on the same paper, whereby all images of the original are formed on the paper without moire pattern.

REFERENCES:
patent: 4101929 (1978-07-01), Ohneda
patent: 4318123 (1982-03-01), Knop
patent: 4386849 (1983-06-01), Haeusler
patent: 4390235 (1983-06-01), Minoura
patent: 4403258 (1983-09-01), Balzan
patent: 4577235 (1986-03-01), Kannapell
patent: 4613896 (1986-09-01), Takita
patent: 4673972 (1987-06-01), Yokomizo
patent: 4675727 (1987-06-01), Sekizawa et al.
patent: 4682243 (1987-07-01), Hatayama
patent: 4760608 (1988-07-01), Suzuki
patent: 4772119 (1988-09-01), Bouwhuis
patent: 4812915 (1989-03-01), Tada

Affiliated with

Also associated with

Rating

Image processing apparatus capable of eliminating moire pattern does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image processing apparatus capable of eliminating moire pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing apparatus capable of eliminating moire pattern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-148858