Image processing method and apparatus

Details Image processing method and apparatus Image processing method and apparatus

2007-12-25

2007-12-25

Moe, Aung S. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S500000, C358S501000, C358S518000, C358S520000, C358S525000, C358S530000, C382S167000, C345S601000, C345S602000, C345S603000, C345S604000

Reexamination Certificate

active

10115092

ABSTRACT:
When a color reproduction model of a device is generated, colorimetry of a 9×9×9 grid, for example, is performed utilizing equidistant signal values in the color space of the device. Generally, if the number of grid points is increased, the precision with which the color reproduction model is estimated rises but the time needed for measurement is prolonged because the number of colorimetric measurements is also increased. Accordingly, in a printer system comprising a pre-color-processing table for performing color matching and a post-color-processing table for performing color separation, color patches set non-equidistantly in RGB device color space are printed in accordance with changeover of printer CMYKcm signals in the post-color-processing table and the color reproduction model of the printer is generated using data obtained by measuring the colors of the color patches.

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