Data conversion between color coordinate systems

Details Data conversion between color coordinate systems Data conversion between color coordinate systems

2007-01-23

2007-01-23

Lamb, Twyler (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C358S519000, C358S520000, C358S525000, C345S590000, C345S591000, C345S600000, C345S601000, C345S604000

Reexamination Certificate

active

10274895

ABSTRACT:
Conversion of color data values from a rectangular coordinate system such as CIELab to a cylindrical coordinate system such as CIELCh using two one-dimensional look-up tables, one each for the C value and the h value. The one-dimensional look-up tables are accessed by defining a new variable γ as the absolute value of the ratio of b and a.

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