System and method for dithering with reduced memory

Details System and method for dithering with reduced memory System and method for dithering with reduced memory

2007-06-26

2007-06-26

Lee, Thomas D. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003050

Reexamination Certificate

active

10288781

ABSTRACT:
A dithering system yielding two-dimensional dither functioning is implemented without line memories. For each primary input color, a feedback loop outputs an color input signal plus error that can be preset to different values. The desired result is that vertical artifacts on a display formed from the output signals are relocated to different locations on consecutive display lines. If signal magnitude from the feedback loop output exceeds the magnitude of the video system creating the display, signal magnitude is preset to a value representing error at the start of the display line.

REFERENCES:
patent: 5122884 (1992-06-01), Gilbert et al.
patent: 7081972 (2006-07-01), Fukao

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