Color conversion relation derivation method, color...

Details Color conversion relation derivation method, color... Color conversion relation derivation method, color...

2004-03-03

2009-02-17

Poon, King Y (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S518000, C345S604000, C703S002000

Reexamination Certificate

active

07492477

ABSTRACT:
A color conversion relation derivation method derives a color conversion relation between a first color space and a second color space. This method comprises an area-forming step that forms a plurality of areas filling the first color space; a partial function derivation step that derives, for each of the areas formed in the area forming step, a partial function representative of a color conversion between coordinates in the area and coordinates of the second color space using a set of an arbitrary sample point provided in the first color space and a point in the second color space, which is associated with the sample point; and a whole function derivation step that combines the partial functions for the respective areas derived by the partial function derivation step to derive a whole function representative of the color conversion relation through the first color space in its entirety.

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Adobe Developer Support, “Device-Independent Color in Postscript Level 2”, Mar. 31, 1992, Adobe Systems Inc., Technical Note # 5124, p. 12.

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