发明名称 |
Method of and apparatus for producing predominate and non-predominate color coded characters for optical character recognition |
摘要 |
Color coding of characters both for optical character recognition by a machine and for viewing by a human is provided by coloring a character with a predominate color distinguishable by humans and a non-predominate color non-distracting to humans, but distinguishable by a color scanner. The advantage of the present invention is higher optical character recognition accuracy rates without the severe visual distraction to human readers of prior art color coded characters. A further technical advantage is that the invention can be practiced with conventional color printers and color scanners instead of the specialized apparatus of prior art color coded characters.
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申请公布号 |
US5406640(A) |
申请公布日期 |
1995.04.11 |
申请号 |
US19910812178 |
申请日期 |
1991.12.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FITZPATRICK, GREG;JOHNSON, WILLIAM J.;KELLER, ROBERT S.;WILLIAMS, MARVIN L. |
分类号 |
G06K9/18;(IPC1-7):G06K9/18 |
主分类号 |
G06K9/18 |
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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