Image processing system

Details Image processing system Image processing system

1993-06-11

1994-11-15

Conso, Yon J.

Image analysis

Histogram processing

For setting a threshold

382 22, G06K 936

Patent

active

053656008

ABSTRACT:
When an image is entered from an input means, a line extracting means extracts and smoothes the contour of that image to obtain a tangent line passing through a certain point on that contour. A region with the certain point as the origin is determined, where Hough transform of a straight line is carried out with the center point of that region as the origin. Hough transform is carried out for all the points adjacent to the origin to obtain an envelope. A tangent line is predicted by the obtained envelope.

REFERENCES:
patent: 4707647 (1987-11-01), Coldren et al.
patent: 5054098 (1991-10-01), Lee

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