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BuKe factory >> Design >> 印刷廠對於以人物類印刷原稿在印刷製版中的註意事項

印刷廠對於以人物類印刷原稿在印刷製版中的註意事項

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2020-11-18 | 469 Views | 🔊 Click to read aloud ❚❚ ▶ | Share:
印刷廠對於以人物類印刷原稿在印刷製版中的註意事項

印刷廠對於以人物類印刷原稿在印刷製版中的註意事項

 

對於以人物膚色為主體的照片原稿一般在具體實際生產中有兩種情況,
其一,正面布光的人物照;
其二,人物面部逆光照。

對於正面布光的照片,為了使人物膚色中固有色與中調色之間有較為軟化的過渡,以適應人物面部調子的需要,可採用長調黑版掃描圖像的復制層次曲線的起始點可適當延長,在加強人物面部暗調層次的同時將固有膚色黑版減至絕網,並向中調色過渡,促使黑版在面部膚色區網點極小而層次卻結實有力,邊緣不硬化,以這種長調短做的手段,可以使黑版達到既保護階調又不影響顏色的目的。

對於人物面部逆光照為中心題材的畫面,由於膚色位處於陰影區域,感光不足,色彩偏冷帶灰,應選擇骨架黑版,並將暗調層次提升,黑版的網點大小相應增加,以補償三原色版階調下降造成的印刷密度損失,強化了暗調,加大了網點給定值,從而使黑版暗調在增強了陡度的同時又降低了中調色量,使灰暗的逆光照片有所改觀。


印刷廠對於以人物類印刷原稿在印刷製版中的註意事項
印刷廠對於以人物類印刷原稿在印刷製版中的註意事項

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