將作品數位化時最常困擾我的問題是品質,影響品質的元凶往往來自於作品的白色背景,因此我想出了用Photoshop後製的方式來改善問題。以下我將一步一步的示範如何修改。
The quality of works digitized sometimes bother me a lot. The root cause of this issue mostly originating from the appearance of white background. Therefore, I come up with using Photoshop to fix it. Please follow me step by step airbrushing the example.
問題描述:
背景過深,但調整的話又會影響到畫作的其它地方
背景過深,但調整的話又會影響到畫作的其它地方
Issue Descriptions:
Background is too dark, and modify it will affect the other part of work
Background is too dark, and modify it will affect the other part of work
修圖過程 (Step-by-step airbrushing)
首先,我使用魔術棒工具只圈選畫面的背景色。藉由調整容許度,我可以調整圈選的範圍
First, Use Magic Wand Tool selecting background only. You can tune Tolerance to control the region selected.
接著,複製選取的區域到新的圖層 (按 Ctrl+J)
Then, copy selected into a new layer. (Press Ctrl+J)
再新增一個白色的圖層到最上層 (按Shift+Ctrl+N, 然後填滿白色),現在我們有三個圖層了
Create another white layer above the copied layer. (Press Shift+Ctrl+N, then fill layer with white)
Now we get 3 layers.
按住鍵盤上的Alt, 然後將滑鼠油標移到此二個圖層之間,會出現一個油漆桶的符號。
Press Alt on keyboard and move the cursor to the boundary between white and copied layer , then a symbol of bucket appears.
Alt+ 移動游標到下面的位置
Alt + move cursor to the place below
按下去後可看到白色圖層旁有箭頭出現,這表示白色只會在我們先前選取的背景範圍出現。如此一來便可以把背景改回白色而不影響到畫面的其他部份。
Click the mouse, and there will be a small arrow appears. It means the white only fill in the region of copied layer up without affecting the other part of work.
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可調整白色圖層的透明度以最佳化背景色。
Modify the Opacity of white layer to optimize your new background.
對於一些塗錯色的小地方可用橡擦擦掉
If there are some defects on your new background, use the eraser eliminating them.
這只是最基本的修改技巧,其它的部分留給大家研究~ 有問題皆可以問~謝謝
It's just the fundamental airbrushing technique. If there is any question, plz tell me~Thx
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