Character and picture image data processing system

Details Character and picture image data processing system Character and picture image data processing system

1990-10-10

1991-12-31

Brinich, Stephen

Image analysis

Histogram processing

For setting a threshold

382 44, G06K 932

Patent

active

050778110

ABSTRACT:
An image processing system including image reading device such as an image scanner for reading an image on a document to produce image signals, a memory for storing the image signals, a data processing unit for processing the image signals. The data processing unit includes a character image discriminating function for discriminating a character image from a picture image, an image orientation detecting function for detecting orientation of the character image to determine whether the orientation of the character image is in a correct orientation, and an image rotation function for processing the image signals to rotate the image so that the image is correctly oriented.

REFERENCES:
patent: 4251799 (1981-02-01), Jih
patent: 4437121 (1984-03-01), Taylor et al.
patent: 4533959 (1985-08-01), Sakurai
patent: 4618991 (1986-10-01), Tabata et al.
patent: 4984280 (1991-01-01), Abe

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