Method and recording medium for separating and composing backgro

Details Method and recording medium for separating and composing backgro Method and recording medium for separating and composing backgro

1998-01-13

2000-07-11

Vu, Kim Yen

Image analysis

Histogram processing

With pattern recognition or classification

382263, 358466, H04N 160

Patent

active

060884797

ABSTRACT:
An image processing method for automatically executing operation steps of repairing a defect of an image of a document which is read by a scanner and changing a background image in a short time and a recording medium for storing them. An image processing method comprising a step of separating background image data from said image data by processing by a maximum filter for comparing the brightness of each pixel constituting said image data with the brightness of peripheral pixels and replacing it with the maximum brightness; and a step of separating character and figure image data by subtracting the background image data obtained by the above step in (a) from the above image data.

REFERENCES:
patent: 5459797 (1995-10-01), Sato
patent: 5649025 (1997-07-01), Revankar
patent: 5748773 (1998-05-01), Tashiro et al.
patent: 5761339 (1998-06-01), Ikeshoji et al.

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