Image processing method

Details Image processing method Image processing method

1986-11-18

1989-06-20

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358282, 358284, H04M 140

Patent

active

048413747

ABSTRACT:
In an image processing apparatus or a method for expressing a halftone-including original image with binary black-and-white pixels and reproducing the original image in the form of a binary-coded output, the feature of the present invention resides in detecting, relative to each of the pixel units obtained by scanning and sampling the original image, a first average density level representative of the average density level of the pixel unit within a first specific reference pixel region composed of pixel unit groups adjacent to the subject pixel unit on the left and right. A second average density level represents of the average density level of the pixel unit within a second specific reference pixel region composed of a pixel unit group adjacent to the first specific reference pixel region from above. The density level of the subject pixel unit is detected in accordance with the first and second average density levels, thereby enabling correction of the gradation.

REFERENCES:
patent: 4150401 (1979-04-01), Yamamoto
patent: 4450483 (1984-05-01), Coviello
patent: 4509195 (1985-04-01), Nadler

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-529118