发明名称 |
A system and method for implementing fast high addressability error diffusion process |
摘要 |
<p>A method and system implements a high addressability characteristic into an error diffusion process. A grey level value representing a pixel is received. The grey level value is interpolated to generate subpixel grey level values which correspond to a second resolution. A threshold circuit thresholds the interpolated grey level value. In parallel to the interpolation circuit and threshold circuit is an error circuit which generates a plurality of possible error values. One of the plurality of possible error values is selected based on the number of subpixels exceeding a threshold value. A portion of the selected error value is then diffused to adjacent pixels on a next scanline. <MATH></p> |
申请公布号 |
EP0696130(A2) |
申请公布日期 |
1996.02.07 |
申请号 |
EP19950305325 |
申请日期 |
1995.07.31 |
申请人 |
XEROX CORPORATION |
发明人 |
METCALFE, DAVID J.;SHIAU, JENG-NAN;WILLIAMS, LEON C. |
分类号 |
H04N1/403;H04N1/405;(IPC1-7):H04N1/405 |
主分类号 |
H04N1/403 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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