Image rendering system and method for generating stochastic threshold array(s) for use therewith
CA 2192102 C · Owner: Polaroid Corporation · Inventors: Kolpatzik, Bernd W.; Thornton, Jay E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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An image rendering system, for, generating discrete tone image data representing a continuous-tone image, for rendering by a rendering device the image rendering system includes, a stochastic threshold array generating arrangement and an image data, processing section. The stochastic threshold array generating arrangement generates a plurality of stochastic, threshold arrays from a random seed pattern that have been , subsequently optimized to reduce image artifacts in the rendering of tones. Each pattern is optimized to reflect (i) a, selected trade-off between grain and possible mottle in the rendered , image (ii) distortions introduced by the, rendering device in rendering an image …
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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 March 22, 1996 and granted November 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2018.
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