Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1995-10-06
1999-04-06
Coles, Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
350448, 350452, 350453, 382156, 382159, 382170, 382282, 382290, 382292, G06K 936, H04N 140, H04N 1387
Patent
active
058925929
ABSTRACT:
An image processing apparatus inputs an image signal obtained by scanning a document in which a character region, a photographic region and a dot region are mixed and stores image data in a local block composed of a target picture element and plural picture elements surrounding the target picture element. The image processing apparatus computes first and second feature parameters P.sub.0 and P.sub.1 representing the features of each region based on the image data in the local block, and inputs the resulting first and second feature parameters P.sub.0 and P.sub.1 to an identification circuit adopting a neural network. The identification circuit outputs the region identification information O.sub.0 and O.sub.1 of the target picture element, and the filter processing circuit performs a spatial filtering process according to the region identification information O.sub.0 and O.sub.1. As described, in the image processing apparatus, since a multi-dimensional identification process is performed using the neural circuit which receives inputs of plural feature parameters, an image identification with very high precision is permitted, and an optimum spatial-filtering process can be applied according to the feature of each picture element,
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Adachi Yasushi
Nakai Yoshiyuki
Coles Edward L.
Conlin David G.
Lowry David D.
Sharp Kabushiki Kaisha
Wallerson Mark
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