Image processing apparatus for variably magnifying image and con

Details Image processing apparatus for variably magnifying image and con Image processing apparatus for variably magnifying image and con

1991-11-29

1994-01-18

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 9, 358455, 358451, G06K 936

Patent

active

052805468

ABSTRACT:
An image forming apparatus capable of magnifying a target image to any desired magnification, includes functions for detecting the maximum and minimum densities from limited image information, including a data piece representing a picture element of the target image, functions for determining from the difference between the maximum and minimum densities detected by the detection means, whether the picture element is in a photographic region or a character region, functions for determining a picture element density appropriate for magnifying the target image from the density of the target picture element and that of a picture element close to the target picture element, and functions for outputting the picture element density determined by the density-determining means, in accordance with whether the target picture element is in a photographic region or a character region.

REFERENCES:
patent: 4251837 (1981-02-01), Janeway, III
patent: 4547811 (1985-10-01), Ochi et al.
patent: 4709274 (1987-11-01), Tanioka
patent: 4841462 (1989-06-01), Vigarle et al.
patent: 4864413 (1989-09-01), Sasaki
patent: 4924509 (1990-05-01), Yokomizo
patent: 5054100 (1991-10-01), Tai
patent: 5161035 (1992-11-01), Muramatsu
patent: 5170443 (1992-12-01), Todd

Affiliated with

Also associated with

Rating

Image processing apparatus for variably magnifying image and con 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 for variably magnifying image and con, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image processing apparatus for variably magnifying image and con will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1141778