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1. 发明公开

EP0950316A4 DEFECT CHANNEL NULLING 失效
标题翻译： KANALFEHLERANNULIERUNG
公开(公告)号：EP0950316A4
公开(公告)日：2007-01-03
申请号：EP97954291
申请日：1997-12-30
申请人： EASTMAN KODAK CO
发明人： EDGAR ALBERT D
IPC分类号： H04N3/36 , H04N5/217 , H04N5/253 , H04N9/10 , H04N9/11 , H04N3/02 , H04N7/18 , H04N9/47
CPC分类号： H04N5/217 , H04N3/36 , H04N5/253 , H04N9/11
摘要： A method of and apparatus for removing the effects of surface and near surface image (12) storage media (14) defects from a scanned image using an infrared record as a norming control. Each pixel in a visible channel of the scanned images is divided by the corresponding pixel in the associated infrared control channel after it has been altered in gain to match the degree of defect in the visible channel. By appropriately altering the gain prior to dividing the pixel information, imbalances between the visible and infrared records which would leave defect residue after the division are reduced or eliminated. To remove defect residue, a degree of nulling is established for each defect region based on the visible and infrared content in that region. In one embodiment, the articulation gain is multiplicatively applied to the logarithm of the visible and infrared records.
摘要翻译：一种方法和设备，用于使用红外记录作为规范控制来从扫描图像去除表面和近表面图像（12）存储介质（14）缺陷的影响。扫描图像的可见光通道中的每个像素在增益被改变以匹配可见光通道中的缺陷程度之后被相关联的红外控制通道中的相应像素分开。通过在划分像素信息之前适当地改变增益，减少或消除了在分割之后留下缺陷残留的可见光和红外记录之间的不平衡。为了去除缺陷残留物，基于该区域中的可见光和红外线含量为每个缺陷区域建立零度。在一个实施例中，关节增益乘以可应用于可见光和红外记录的对数。

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