Image processing apparatus

Details Image processing apparatus Image processing apparatus

1988-01-26

1989-06-06

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

382 22, G06K 944

Patent

active

048378470

ABSTRACT:
An image processing apparatus for correcting shape errors when a graphic image to which contour line data was given is painted and developed comprises: an input device to input contour line data of image information; a circuit to make a contour line pattern of the image information on the basis of the contour line data; a circuit to make a painted pattern in which the inside of the contour line pattern was painted; a circuit to narrow the painted pattern; and a contour line correcting circuit to obtain the exclusive-OR of the narrowed painted pattern and the contour line pattern. The contour line pattern is eliminated from the painted pattern by the narowing circuit. The contour line correcting circuit has a converter to convert the contour line pattern in correspondence to the drawing direction of the contour line pattern and obtains the exclusive-OR of the converted contour line pattern and the painted pattern. This apparatus can prevent that the small blank region in an image, is painted and can effect a feature of a contour line.

REFERENCES:
patent: 4110736 (1978-08-01), Kono
patent: 4477926 (1984-10-01), Linger et al.
patent: 4493855 (1984-04-01), Bishop et al.
patent: 4754488 (1988-06-01), Lyke

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