Facsimile and static presentation processing – Natural color facsimile – Color correction
Reexamination Certificate
2011-08-02
2011-08-02
Moore, David K (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color correction
C358S500000, C358S501000, C358S504000, C358S523000, C358S001900, C358S002100, C358S003230, C345S591000, C345S593000, C345S601000, C345S602000, C345S603000, C345S604000
Reexamination Certificate
active
07990588
ABSTRACT:
Determination of a grid structure for a set of values in a device color space, in which heuristics are applied to a collection of color sample data in order to determine the structure of a look-up table that best fits the samples. Sampling data is sorted for each channel thereof, and the number of steps in each channel is counted. The data is checked for completeness. Steps are removed if they do not correspond to steps on the axes of a three-dimensional cube. If, as a result of step removal, a full LUT has been obtained, then the structure of the LUT has been determined and the process ends. On the other hand, if a full LUT has not been obtained, then steps are removed if they are under-correlated with other steps.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Menberu Beniyam
Moore David K
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