Method and unit for binary processing in image processing unit a

Details Method and unit for binary processing in image processing unit a Method and unit for binary processing in image processing unit a

1992-12-22

1998-10-20

Mancuso, Joseph

Image analysis

Image segmentation

Segmenting individual characters or words

382290, G06K 934

Patent

active

058259201

ABSTRACT:
A binary processing method for a variable density image the method includes the steps of binary processing an image having variable density, according to which brightness of an image having variable density to be binary processed is given as 1
(where n is an integer of 2 or above), and expansion processing and smoothening processing the image having the brightness of 1
so that a threshold value image for binary processing is generated. A difference is obtained between the threshold value image and the variable density image to be binary processed, such that it is possible to carry out binary processing even for an image having a complex background or variance in brightness.

REFERENCES:
patent: 4658428 (1987-04-01), Bedros et al.
patent: 5001766 (1991-03-01), Baird
patent: 5093653 (1992-03-01), Ikehira
patent: 5138668 (1992-08-01), Abe

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