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深圳印刷公司印品中白色系顏色的辨識與調校

From:Buke printing factory of China步殼印刷 | Author:China Bukeprinting factorybook0755 | Published time: 2020-07-12 | 530 Views | 🔊 Click to read aloud ❚❚ | Share:
首先要記住本印刷公司的灰平衡數據,尤其是高光調,也就是白色區域的灰平衡數據,如果本印刷公司沒有建立灰平衡數據,用下列數據進行對比調校,也能達到較好的效果
深圳印刷公司印品中白色系顏色的辨識與調校

    首先要記住本印刷公司的灰平衡數據,尤其是高光調,也就是白色區域的灰平衡數據,如果本印刷公司沒有建立灰平衡數據,用下列數據進行對比調校,也能達到較好的效果

深圳印刷公司

    (1)網點在0-10%:C>M(2%-4%),M=Y,K=0

        網點在10%-20%:C>M(4%~6%),M=Y,K=0

    (2)有時白色只由C+M構成,且C>M,顯冷色調,K=0

    (3)下麵通過實際印刷公司案例來進行辨識和調校Photoshop中,瓷器的白色正常,而4-2(b)的瓷器偏紅色。現要將(b)圖調校成(a)圖的效果。具體操作如下:

    ①框選(b)圖,在“視圖”菜單下,勾選“標尺”,然後拖一條參考線,以便準確地選定調校的參考點

    ②選吸管工具,按住“Shif”的鍵同時,在參考線上分別用吸管選定

    ③分析參考點1和參考點2的CMYK值,確定增加(b)的C值,降低(b)圖的M值

    ④選“圖像/調整冋選顏色”功能,彈出圖4-3,在通道處選定“白色”,如紅色箭頭所指,增加C值,降低M值至符合要求。

    ⑤在“視圖”菜單下,取消選定的參考信息“標尺”及“顯示額外內容

    ⑥保存

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