发明名称 |
Constructing tone scale curves |
摘要 |
<p>A method is disclosed for constructing a tone scale curve. In this curve, equal log exposure differences in an x-ray image of an object produce substantially equal brightness differences in a displayed image. The method uses a brightness model that describes the relationship between physically measurable luminance (L) and its perceived brightness (B) under x-ray film viewing conditions. <IMAGE></p> |
申请公布号 |
EP0725311(A1) |
申请公布日期 |
1996.08.07 |
申请号 |
EP19960420024 |
申请日期 |
1996.01.19 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
LEE, HSIEN-CHE;DALY, SCOTT J.;VANMETTER, RICHARD L.;TSAUR, ALLEN K. |
分类号 |
G01T1/29;A61B6/00;G03B42/02;G03C5/02;G03C5/08;G03C5/17;G06T5/00;(IPC1-7):G03C5/17;G03C1/46 |
主分类号 |
G01T1/29 |
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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