Thresholding algorithm selection apparatus
CA 1268547 C · Owner: Eistream Technologies, Inc. · Inventors: El-Sherbini, Ahmed Mostafa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thresholding algorithm selection apparatus for selecting the threshold algorithm to be applied to a specimen in a digital imaging process is disclosed. The specimen is preliminarily scanned and thresholded using a predetermined thresholding algorithm. The resulting preliminary digital image is divided into a number of cells or regions. Each cell is classified according to its optical characteristics; e.g. textual photographic, etc. The cell classification is effected in the preferred embodiment by comparing the average white and black run-lengths of each cell to experimental average run-length values which are representative of the different types of specimens. The specimen is re-scanned …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 1, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 1, 2007.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.