提出了一种基于图像处理的像素间距误差测量方法。
A method based on image processing is presented for measuring the pixel interval error of printer.
扫描仪误差包括像素间距误差、像素间距横纵比误差及扫描起点误差等。
Scanner errors include pixel interval error, horizontal-to-vertical proportion error and starting position error.
大多数广告牌都被安装在很远的位置上，因此像素间距无需过小，平均间距为16或19毫米。
Most billboards are meant to be seen from a distance so the pitch doesn't have to be as small. The average pitch is 16 or 19 millimeters.
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