Color conversion method, color conversion table created by...

Details Color conversion method, color conversion table created by... Color conversion method, color conversion table created by...

2009-05-20

2011-12-13

Williams, Kimberly A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C358S520000, C358S529000, C345S601000, C382S162000, C382S167000

Reexamination Certificate

active

08077353

ABSTRACT:
There is provided a color conversion method. The method includes: a black correction step of converting the first black corresponding to the first color data having a tone value of 0 to the second black corresponding to the second color data having a tone value of 0 so that when the first black corresponding to the first color data having a tone value other than 0 is converted to a value smaller than a quantization threshold of tone values 0 and 1 of the second color data, a conversion destination becomes greater than or equal to the quantization threshold; a recording agent limit quantity calculating step of setting an upper limit of the sum of tone values for each pixel of the second color data with respect to a predetermined print medium; and a chromatic color correcting step of converting the second chromatic color so that the second color data after conversion in the black correction step does not exceed the upper limit.

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