Image processing device, image processing method, image...

Details Image processing device, image processing method, image... Image processing device, image processing method, image...

2006-11-07

2006-11-07

Desire, Gregory (Department: 2624)

Image analysis

Pattern recognition

Feature extraction

C382S176000, C382S266000, C382S292000

Reexamination Certificate

active

07133559

ABSTRACT:
The image processing device1generates edge image data from input image data, measures the distances between edge pixels in the main and secondary scanning direction, and interpolates between the edge pixels where said distances are less than a specified number of pixels in order to generate connecting edge image data of a group of connecting edge pixels. Next, it extracts a rectangular area circumscribing said group of connecting edge pixels as a local area, extracts diagonal direction edge components of said input image data that belong to said local area, and identifies said local area if the content of said diagonal direction edge components is within a specified range.The image processing device according to the present invention makes it possible to identify character areas correctly even in case of character images on complex color area reproduced by a screen, etc., and also extract character areas without causing problems such as partially missing defective characters.

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