Method of changing magnification of image

Details Method of changing magnification of image Method of changing magnification of image

1986-04-09

1988-04-26

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, 358298, H04H 104

Patent

active

047408448

ABSTRACT:
A method of applying magnification changing processing to an image in a digital copier or the like. The processing consists of subprocessing which is effected by operating optics of a scanner, and subprocessing which is effected by space filter processing of the kind using a threshold matrix. When digital video data read by the scanner on a pixel basis and quantized with respect to multiple levels are to be binarized by the space filter processing, the size of the threshold matrix is changed to roughly change the magnification. A delicate change of magnification is performed by the operation of the optics while the scanner reads the image.

REFERENCES:
patent: 3837743 (1974-09-01), Amemiya
patent: 4423439 (1983-12-01), Watanabe
patent: 4424534 (1984-01-01), Nagane
patent: 4496983 (1985-01-01), Takenaka
patent: 4521812 (1985-06-01), Knop
patent: 4633327 (1986-12-01), Roetling
patent: 4651225 (1987-03-01), Yamada
patent: 4679096 (1987-07-01), Nagashima
patent: 4684979 (1987-08-01), Hirosawa

Affiliated with

Also associated with

Rating

Method of changing magnification of image does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of changing magnification of image, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of changing magnification of image will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-823138