1.Double-black duotone A duotone created from two black plates. See Duotone.
双黑双色调由两块黑版印制的双色调。参阅双色调。
2.Craig Nelson Drawing Duotone Portrait
双色调人物肖像绘画
3.Drawing a Duotone Portrait by Craig Nelson
双色肖象绘画教学
4.The Formation and Output of Duotone Images
双色调图像的生成与输出
5.If a Duotone image, convert it to " " multi-channel color model;
如果图象为单色调,不兵它变换为“众通道”颜色模式;