Color control for on-screen display in digital video

Details Color control for on-screen display in digital video Color control for on-screen display in digital video

1996-05-06

1998-07-21

Kim, Matthew M.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345203, 345153, 345509, G09G 506

Patent

active

057840555

ABSTRACT:
A method of performing color control in a digital video decoder while minimizing memory bandwidth. A decoded color image bit map is stored in a RAM in lines corresponding to horizontal lines of pixels. Each line also has dedicated bytes for a corresponding color look up table comprising a control field and color address fields. Entries in separate preloaded color component tables are addressed by the color address fields. A transparency bit in the control field is used to select modifiers to the data in the address fields for transparency mode.

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