Image analysis – Histogram processing – For setting a threshold
Patent
1984-03-01
1988-01-05
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 25, 382 26, 358260, G06K 936
Patent
active
047181052
ABSTRACT:
A method and apparatus is described in which a document is scanned and the coordinates of each graphic element intercepted along the scan line are analyzed to encode a compact digital representation of the various graphic elements. In one embodiment, detected features of a height less than a first dimension or having both a width less than a desired width threshold and a height less than a desired height threshold are deleted as representative of noise. No data representative of topological or dimensional features is output until after the continued recognition of such features for more than a threshold number of scan lines.
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Kleca Eugene A.
Lipkie Curtis A.
ANA Tech Corporation
Boudreau Leo H.
Couso Jose L.
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