Image analysis – Histogram processing – For setting a threshold
Patent
1991-11-19
1993-04-06
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
382 22, 382 48, 382 55, G06K 934, G06K 900
Patent
active
052010112
ABSTRACT:
An image markup detection device and method identifies and extracts markup lines and regions marked automatically or interactively by a user with an ordinary pen or pencil. Only morphological image processing operations on a scanned source image are used, resulting in the extrapolation of markup lines and marked region. The markup lines are either extracted from the image, or the background information of the image (e.g., text) is removed, leaving only the markup lines. The marked region can then be printed, transferred or otherwise processed.
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Bloomberg Dan S.
Dasari Lakshmi
Johns Andrew W.
Moore David K.
Xerox Corporation
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