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包裝盒生產廠家​“曲線”調整圖像

From:Buke printing factory of China | Author:China Bukeprinting factorybook0755 | Published time: 2022-03-17 | 397 Views | Share:
陰影的深淺也是應該引起重視的一個問題,不能隨便選擇一個顏色就來做陰影

                                            包裝盒生產廠家“曲線”調整圖像


Photoshop中如何使用“曲線”調整圖像?“色階”工具一樣,“曲線”也可以調整圖像的整個色調範圍。但“曲線”與“色階”相比,


利用“曲線”可以在圖像的整個色調範圍(從暗調到高光)內設置14個不同的點進行調整,所以調整起來比“色階”更精確。 Photoshop


依次點擊“圖像”→“調整”→“曲線”,打開“曲線”對話框。“曲線”對話框打開時曲線是一條直的對角線。圖表的水平軸表示像素的


“輸入”色階,垂直軸表示“輸出”色階默認情況下,“曲線”對於RGB圖像顯示強度值從0~25,黑色0位於左下角,對於CMYK圖像顯示百分比


0~100,高光0位於左下角。如果要反向顯示強度值和百分比,點按曲線下方的雙箭頭Photoshop中製作陰影應該選擇什麽顏色?


為物體或文字製作陰影時,一般應在 Photoshop等點陣圖像軟件中進行,因為它所形成的陰影有一定虛邊,較為形象和真實。而在矢量圖像軟件


中製作陰影一般達不到這種效果。一般陰影顏色是灰色,並且最好是四色灰,即由CMYK組成的灰色。這樣在印刷時邊緣會過渡得較好,


不會出現“硬邊”。別外,陰影的深淺也是應該引起重視的一個問題,不能隨便選擇一個顏色就來做陰影。雖然陰影的深淺與周圍顏色有一定


關系,但陰影顏色最深處(陰影一般由深往淺過渡)的灰度值K40%~70%較好。如果太小,則陰影太淺,不明顯;如果太大則顯得太濃重。


包裝盒生產廠家“曲線”調整圖像

包裝盒生產廠家“曲線”調整圖像


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