发明授权
US06720992B1 Method for improving the contrast reproduction of digitized images
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用于改善数字化图像的对比度再现的方法
- 专利标题: Method for improving the contrast reproduction of digitized images
- 专利标题(中): 用于改善数字化图像的对比度再现的方法
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申请号: US09430459申请日: 1999-10-29
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公开(公告)号: US06720992B1公开(公告)日: 2004-04-13
- 发明人: Wolfgang Zahn , Werner Ritter von Stein
- 申请人: Wolfgang Zahn , Werner Ritter von Stein
- 优先权: DEOS19936615 19990804
- 主分类号: H04N904
- IPC分类号: H04N904
摘要:
The optimum reproduction of high-contrast motifs in digital imaging technology is limited owing to the limited dynamic range of present-day image sensors. The reproduction of high-contrast motifs is intended to be improved using active pixel image sensors. The sensitivity of the sensor pixels is adapted, controlled in an analogous manner to the blurred brightness distribution in the motif, to ensure that the dark and bright image regions of the motif are also reproduced, well illuminated, without any loss of detailed contrast. This results in a particularly natural and balanced image impression. This method may be used in numerous fields for digital image processing.