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BuKePrinting >> knowledge >> 如何判斷和糾正原稿的偏色

如何判斷和糾正原稿的偏色

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2021-01-10 | 1262 Views | Share:
如何判斷和糾正原稿的偏色

如何判斷和糾正原稿的偏色

在原稿的製作過程中,由於光照、照相設備、沖洗條件等因素的影響,原稿的偏色是不可避免的,常見有整體偏色、暗調偏色、亮調偏色和交叉偏色。


我們可以通過電分機、蘋果機或PC機中的掃描軟件或圖像處理軟件來判斷並糾正原稿的偏色,即依據圖像中的中性灰來判斷原稿是否偏色。如果中性灰區域的RGB三個分量值相等,或在LAB顏色模式下,A、B的值等於0說明原稿沒有偏色。

一旦發現偏色,進行糾正時一定要整體考慮,不能見一個偏色就馬上處理一個顏色,否則會引起其他的偏色。

如何判斷和糾正原稿的偏色
如何判斷和糾正原稿的偏色

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