Image-processing apparatus

Details Image-processing apparatus Image-processing apparatus

Filed on

2005-12-20

Date issued

2005-12-20

Examiner

Bali, Vikkram (Department: 2623)

Patent Class

Image analysis

SubClass

Pattern recognition

SubSubClass

Feature extraction

Other Related Categories

C382S266000

Type

Reexamination Certificate

Status

active

Patent number

06978045

Description

ABSTRACT:
In an image processor on multi-level image data, an edge direction of a target pixel is discriminated from differences in density level between the target pixel and adjacent pixels thereof. A pixel is divided into a plurality of sub-pixels, and the image is formed in the unit of sub-pixels. The density level is set for each of the sub-pixels in the target pixel in accordance with the discrimination on the edge direction of the target pixel so that the center of gravity in density is changed in the target level. Then a character edge portion is reproduced more smoothly.

REFERENCES:
patent: 4847641 (1989-07-01), Tung
patent: 5005139 (1991-04-01), Tung
patent: 5257116 (1993-10-01), Suzuki
patent: 5299308 (1994-03-01), Suzuki et al.
patent: 5341153 (1994-08-01), Benzschawel et al.
patent: 5486927 (1996-01-01), Koizumi et al.
patent: 5559530 (1996-09-01), Yamashita et al.
patent: 5862257 (1999-01-01), Sekine et al.
patent: 6040911 (2000-03-01), Nozaki et al.
patent: 6408109 (2002-06-01), Silver et al.
patent: 6597363 (2003-07-01), Duluk et al.
Kurt Akeley, “Reality Engine Graphics”, Aug. 1993, ACM, ISBN: 0-89791-601-8, pp. 109-116.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3472662