Image processing using linear light values and other image processing improvements
CA 2569211 C · Owner: Munsil, Donald J. · Inventors: Spears, Stacey L.; Evans, Glenn F.; Munsil, Donald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Strategies are described for processing image information in a linear form to reduce the amount of artifacts (compared to processing the data in nonlinear form). Exemplary types of processing operations can include scaling, compositing, alpha~-blending, edge detection and so forth. In a more specific , implementation strategies are described for processing image information (114) that is: a) linear; b) in the RGB color space; c) high precision (e.g. provided by floating point representation); d) progressive; and e) fu11 channel. Other improvements provide strategies for: a) processing image information in a pseudo-linear space to improve processing speed; b) implementing an improved …
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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 July 28, 2005 and granted April 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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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.