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Dependent color halftoning: Better quality with less ink

机译:取决于颜色的半色调:用更少的墨水获得更好的质量

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When a color image is halftoned its color channels are normally halftoned independently. The dots in different channels are placed independent of each other and consequently the final result may not be of high quality even if a well performing monochromatic halftoning method has been used. In this article we propose a method that halftones the channels of the color image in a context dependent manner. Since the yellow ink on a white paper is hardly visible, only cyan and magenta separations need to be halftoned dependently. We also show that dependent color halftoning not only increases the halftone image quality but also decreases the amount of ink needed to reproduce different colors.
机译:当彩色图像被半色调时,其色彩通道通常独立地被半色调。不同通道中的点彼此独立放置,因此,即使使用了性能良好的单色半色调方法,最终结果也可能不是高质量的。在本文中,我们提出了一种以上下文相关方式对彩色图像通道进行半色调的方法。由于白纸上的黄色墨水几乎看不见,因此仅青色和品红色的分隔需要独立地进行半色调处理。我们还显示,依赖的颜色半色调不仅可以提高半色调图像质量,而且可以减少再现不同颜色所需的墨水量。

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