Method and system for enhancement of a digitized image
CA 1309502 C · Owner: Joyce, Terrence H. · Inventors: Joyce, Terrence H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method of modifying pixels supplied to the system that a multiple level signals for a digitized image wherein a moving pixel window with a center pixel Dc, is used from which the annular means ma, of the center, pixel (the mean of the 2N pixel values of the window surrounding the center pixel, where N is an integer of 1 or more) is determined with the center pixel and selected pixels surrounding the center pixel, Dc are used to, determine a measure of deviation (center deviation .sigma.c) of, the center pixel relative to the center pixel that is used to obtain a modification gain, f(.sigma.c,Cg). The center pixel Dc, its annular mean, ma, and its modification gain …
Read the whole patent
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 October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.