Image binarization method

Details Image binarization method Image binarization method

2006-06-06

2006-06-06

Liang, Regina (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000, C345S077000, C382S237000

Reexamination Certificate

active

07057595

ABSTRACT:
The method for transforming a digital image (A) having several gray levels into a binary image (F) in which each pixel is coded over one bit, consists in applying, to each current pixel (P) of the digital image having several gray levels, several different parallel binarization processes (T1, T2, T3) each delivering as output a binary value for this current pixel and in combining (T4) the binary values delivered by the various binarization processes for each current pixel of the digital image having several gray levels so as to obtain a resultant binary value constituting the corresponding pixel of the binary image.

REFERENCES:
patent: 5815606 (1998-09-01), Baker et al.
patent: 6236466 (2001-05-01), Chung
patent: 6269353 (2001-07-01), Sethi et al.
patent: 0 467 577 (1991-09-01), None
patent: WO 97/34253 (1997-02-01), None

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