Illuminant-neutral gray component replacement in systems for...

Image analysis – Image transformation or preprocessing – Combining image portions

Reexamination Certificate

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C382S162000

Reexamination Certificate

active

10721948

ABSTRACT:
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.

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