发明名称 |
Picture element data density conversion apparatus |
摘要 |
A picture element data density conversion apparatus, enabling arbitrary amounts of data density reduction to be independently selected for the horizontal (i.e. main) and vertical (i.e. secondary) scanning directions of a picture field, executes processing along a continuous path in which horizontally successive input values along each line of the field are first periodically selected and horizontal weighted averaging between specific pairs of these selected values is executed, then periodic selection of successive lines of the horizontal weighted average values thus obtained is executed, and vertical weighting averaging between vertically corresponding pairs of values in the selected line pairs is performed, to obtain density-reduced output data.
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申请公布号 |
US5289292(A) |
申请公布日期 |
1994.02.22 |
申请号 |
US19920887498 |
申请日期 |
1992.05.26 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
OSADA, MASARU;KURIYAMA, TAKASHI |
分类号 |
H04N1/387;G06T3/40;(IPC1-7):H04N1/387;G06F15/66 |
主分类号 |
H04N1/387 |
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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