Invention Application
- Patent Title: COLOR ERROR DIFFUSION WITH ERROR SIGNAL OFFSETS
- Patent Title (中): 带有错误信号偏移的颜色错误扩展
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Application No.: US11468971Application Date: 2006-08-31
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Publication No.: US20080055649A1Publication Date: 2008-03-06
- Inventor: Kevin E. Spaulding , Douglas W. Couwenhoven
- Applicant: Kevin E. Spaulding , Douglas W. Couwenhoven
- Main IPC: G06K15/00
- IPC: G06K15/00

Abstract:
A method for multi-toning an input digital image having input pixels with two or more color channels to form an output digital image having modified output levels. The method includes producing shifted error signals for each color channel, weighting the shifted error signals to determine weighted error signals for nearby pixels that have yet to be processed; producing shifted weighted error signals; and adjusting the input levels for the nearby pixels responsive to the shifted weighted error signals.
Public/Granted literature
- US07564589B2 Color error diffusion with error signal offsets Public/Granted day:2009-07-21
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