Image processing apparatus capable of detecting marked region

Details Image processing apparatus capable of detecting marked region Image processing apparatus capable of detecting marked region

1992-04-03

1993-06-01

Boudreau, Leo H.

Facsimile and static presentation processing

Static presentation processing

Attribute control

382 17, 382 48, G06K 900, H04N 146

Patent

active

052164985

ABSTRACT:
An image processing apparatus including an image input circuit for reading color images obtained by separating each pixel of an an original image into three color components a color data-forming circuit for forming color data for identifying a color of each of the pixels as either a white color, an achromatic color or a chromatic color on the basis of the color images, a color-reproducing circuit for converting the color images into density data corresponding to plural recording colors, and a marked region-detecting circuit for detecting a marked portion on the basis of the color data formed by the color data-forming circuit and for extracting a region enclosed by the marked portion.

REFERENCES:
patent: 4841361 (1989-06-01), Matsunawa et al.
patent: 4937662 (1990-06-01), Matsunawa et al.
patent: 4942461 (1990-07-01), Abe et al.
Masahiko Hase et al. "A Method for Extracting Marked Regions from Document Images," Systems & Computers in Japan, vol. 18, No. 8 (1987).

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