摘要
由于光照的非均匀性和传感器对不同空间位置响应的差异,几乎所有的平板扫描仪都存在边界效应问题,以水平边界效应更为明显。本文测量了ScanMaker 4850Ⅲ扫描仪对未印刷白色静电复印纸的响应值,证明确实存在边界效应。
There are boundary effects to almost all flatbed scanner in which horizontal boundary effects are more notable due to non-uniformity of illumination and sensor response differences to different spatial position. Response values from white paper surface used by xeroxgraphic machines were obtained with a ScanMaker 4850111 scanner. The measurement results show that boundary effects are existed in the tested scanner.
出处
《出版与印刷》
2011年第2期2-6,48,共5页
Publishing & Printing
关键词
平板扫描仪
边界效应
空间非均匀性
Flatbed Scanner Boundary Effect Spatial Non-uniformity
