Computer graphics processing and selective visual display system – Display peripheral interface input device
Patent
1992-11-23
1993-10-19
Weldon, Ulysses
Computer graphics processing and selective visual display system
Display peripheral interface input device
345199, G09G 128
Patent
active
052549780
ABSTRACT:
A reference color selection system is provided for creating a palette of colorimetrically measured colors. Palettes of colorimetrically measured colors representing naturally occurring objects and specified using a standard device independent color specification, such as the CIE color specification, are arranged in a data base. A simple-to-use color selection user interface permits a user to retrieve, view, and modify each palette. The palette of colors is displayed in a simple arrangement on a display screen such as a color monitor. Each color is transformed into coordinates in a uniform color space, such as the CIELAB space. The user may delete colors not needed, and may create new colors for the palette by mixing two existing palette colors together. The mixing function simulates an artist's "color wash", and is a linear interpolation, or interval scale, in the uniform color space between two end colors selected by the user. A color from the range of intermediate colors may be added by the user to the selected palette, and the new palette may be stored for future use in a wide variety of color presentation systems.
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Bares Judith C.
Mengistu Amare
Weldon Ulysses
Xerox Corporation
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