Method of color image processing to eliminate shadows and reflections
CA 2504567 C · Owner: Marion, Vincent · Inventors: Marion, Vincent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of color image processing comprises at least the following steps: the color image is converted into an intermediate image comprising components that depend solely on the H and S components of the original image in an HSV or HLS representation; the intermediate image comprising at least two components X and Y, determined by functions especially of the H component these functions , taking the same value when the H component is zero or equal to one; a new image comprising only one component is generated from the intermediate image the component of this new image being a function of the components of the intermediate image. The disclosed method can be applied especially to the …
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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
- Filed September 12, 2003 and granted May 31, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2025.
- 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.