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Color error diffusion with color bleed control

  • US 20050212816A1
  • Filed: 03/29/2004
  • Published: 09/29/2005
  • Est. Priority Date: 03/29/2004
  • Status: Active Grant
First Claim
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1. A method for controlling color bleed in relation to a system-invoked halftone color-image process which involves the practice of error diffusion, said method comprising selecting a location in the system which is downstream therein relative to where such error diffusion takes place, at that selected location, performing diffusion-accumulated error calculation, at another location in the system which is downstream from where said performing 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 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.

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