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測試卡說明
這種測試卡包括2到5組高對比(密度=1.6)在一個160x160mm的影印紙上。每組單模式對比高度是由白底上三條黑線組成的。這些圖案在水平和垂直方向上都有。
適當的頻率列於下表。
The target is high contrast (density = 1.6) containing -2 through 5 groups on a 160 x 160 mm reprographic paper. The single patterns in the groups are based on 3 black bars on firection se groups are based on 3 black bars on firection .se groups . is positive (white background).
The appropriate frequencies are listed in the table below.
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