- 专利标题: Color error diffusion with color bleed control
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申请号: US10812750申请日: 2004-03-29
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公开(公告)号: US20050212816A1公开(公告)日: 2005-09-29
- 发明人: Ching-Wei Chang
- 申请人: Ching-Wei Chang
- 专利权人: Sharp Laboratories of America, Inc.
- 当前专利权人: Sharp Laboratories of America, Inc.
- 主分类号: B41J2/21
- IPC分类号: B41J2/21 ; B41J2/52 ; G06K9/40 ; G06T1/00 ; G06T5/00 ; G09G5/00 ; H04N1/405 ; H04N1/46 ; H04N1/52 ; H04N1/60
摘要:
A method for controlling color bleed in relation to a system-invoked halftone color-image process which involves and includes the practice of error diffusion. The proposed method involves (a) selecting a location in the system which is downstream therein relative to where error diffusion takes place, (b) at that location, performing diffusion-accumulated error calculation, (c) at another location in the system which is downstream from where error calculation takes place, applying error filtering to define a numerically weighted pixel-neighbor distribution pattern for such calculated accumulated error, where the numbers associated with that pattern add to a defined distribution-weight totality number, and (d) then preparing, for use in a next-pixel error-diffusion event, a chosen distribution-weight totality number which is less than the defined distribution-weight totality number.
公开/授权文献
- US06977663B2 Color error diffusion with color bleed control 公开/授权日:2005-12-20
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