G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 5/50 (2006.01) G06T 1/00 (2006.01) G06T 9/00 (2006.01) H04N 1/32 (2006.01)
Patent
CA 2488029
Methods and apparatus for spectrally-encoding plural source images and for providing the spectrally-encoded plural source images in a composite image, for rendering the composite image in a physical form, or for recovering at least one of the encoded source images from the rendered composite image such that the recovered source image is made distinguishable. Source image confusion in a rendered composite image is controlled by application of a illuminant-neutral gray component replacement (GCR) technique to the darkness common to the different colorants under the multiple illuminants.
Dispositif et méthode de codage multiplexe de plusieurs images sources et de conversion de ces images sources en une image composite, de rendu de l'image composite sous forme physique, et de récupération d'au moins une des images sources codées de l'image composite rendue, de telle sorte que l'image source récupérée est rendue distinctive. La confusion des images sources dans une image composite est limitée par l'application d'une technique d'équilibrage électronique des gris (GCR) aux zones sombres fréquentes dans les divers coloris sous de multiples illuminants.
Loce Robert P.
Sharma Gaurav
Zhang Yeqing
Sim & Mcburney
Xerox Corporation
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