Image analysis – Histogram processing – For setting a threshold
Patent
1996-01-26
1998-09-29
Black, Thomas G.
Image analysis
Histogram processing
For setting a threshold
395616, 395771, 395935, 382190, 382286, 382287, 382290, G06F 1721
Patent
active
058157042
ABSTRACT:
In a document filing apparatus, a file memory previously stores a plurality of documents including of line data, character data and image data. An image input section inputs a new document as image data. A character-line extraction section extracts line data and character data from the input image data. A document retrieval section retrieves a document to be compared with the new document from the file memory. A difference detection section detects differences of line data, character data and image data between the new document and the retrieved document. A register section registers the difference data and identification information of the retrieved document as the new document in the file memory.
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Asano Mieko
Hori Osamu
Kubota Hiroaki
Shimotsuji Shigeyoshi
Black Thomas G.
Homere Jean R.
Kabushiki Kaisha Toshiba
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