Color graphics system

Details Color graphics system Color graphics system

G - Physics

09

G

375/12

G09G 5/36 (2006.01) G09G 5/02 (2006.01) G09G 5/06 (2006.01)

Patent

CA 1324847

ABSTRACT OF THE INVENTION A color graphics system for use with a computer. The color graphics system utilizes a look-up table having index values to be stored in a frame buffer. The look-up table is addressed by providing color information, such as RGB color information to the table. The index values may be used to index a second lock-up table for providing color information, such as RGB color information. The present invention further discloses methods of insuring index values provided by the lock-up table closely approximate the desired color within the available color space. Further the present invention provided methods for performing arithmetic transfer operations on colors represented by indexes in the frame buffer.

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