Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2006-02-28
2006-02-28
Brier, Jeffery (Department: 2672)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
Reexamination Certificate
active
07006105
ABSTRACT:
The gray axis of an input apparatus is shifted so as to match the gray axis of an output apparatus. Each data on a plane of equal lightness located in the Gamut of the input apparatus is shifted in the same direction in accordance with the shift of the gray axis by an amount of shifting smaller in proportion to greater distance from the gray axis. Therefore, the image is not governed by the chromaticness in the shifting direction even if the gray axis is shifted. Points located outside the Gamut of the output apparatus is compressed-converted into points within the Gamut (surface) where color difference is minimized while maintaining the lightness. A desired image is reproduced without inversion in the lightness after Gamut compression between data.
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Deishi Satoshi
Hayakawa Masahiro
Hiramatsu Naoko
Masaki Kenji
Uchino Fumiko
Amini Javid
Brier Jeffery
Minolta Co. , Ltd.
Sidley Austin Brown & Wood LLP
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