发明名称 |
A method of generating a gray scale image. |
摘要 |
<p>A method and apparatus for generating a grey scale image using a matrix of pixels uses dots of differing sizes to represent different grey levels. When there is no exact match between the dot size and the grey level of the original, an error magnitude is determined and the error is then scaled and diffused to alter the dot sizes of adjacent pixels.</p> |
申请公布号 |
EP0260020(A2) |
申请公布日期 |
1988.03.16 |
申请号 |
EP19870307532 |
申请日期 |
1987.08.25 |
申请人 |
HEWLETT PACKARD COMPANY |
发明人 |
DISPOTO, GARY J.;MATHER, LARRY R.;MEYER, JOHN D. |
分类号 |
B41J2/52;H04N1/405 |
主分类号 |
B41J2/52 |
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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