In order to study the preferred skin color for printing images,two CMYK images from ISO 400 and one from iStock,including five skin color images of East Asian females was selected in this study.The images were adjuste...In order to study the preferred skin color for printing images,two CMYK images from ISO 400 and one from iStock,including five skin color images of East Asian females was selected in this study.The images were adjusted with the CMYK printing ink volume variation of the single,double and triple channels in the given 280%total ink limit conditions.A larger number of color vision normal observers were organized to carry out the color preference evaluation experiment,and the selected preferred skin colors were analyzed.The distribution range of the chromaticity values for skin color images were obtained and the results indicated that there are three regions for printing skin color preferences,and the observers have a memory preference for brighter,fairer skin colors in young female and a reddish skin colors in girl,which can provide the guidance for color adjustment of printed skin color images.展开更多
文摘In order to study the preferred skin color for printing images,two CMYK images from ISO 400 and one from iStock,including five skin color images of East Asian females was selected in this study.The images were adjusted with the CMYK printing ink volume variation of the single,double and triple channels in the given 280%total ink limit conditions.A larger number of color vision normal observers were organized to carry out the color preference evaluation experiment,and the selected preferred skin colors were analyzed.The distribution range of the chromaticity values for skin color images were obtained and the results indicated that there are three regions for printing skin color preferences,and the observers have a memory preference for brighter,fairer skin colors in young female and a reddish skin colors in girl,which can provide the guidance for color adjustment of printed skin color images.
文摘针对商业合版印刷无法适应满版成品离线自动分离设备的要求,探索并提出一种能实现满版成品离线自动分离的拼版方法。根据满版成品离线自动分离设备的工作原理,给出成品自动分离要求,然后依据成品自动分离要求,利用Adobe Illustrator和TongYin PDF Expert软件完成产品拼版。实例分析结果表明,相较于人工成品分离,所实现的满版成品离线分离提升了近2倍的工作效率,同时也减少了2/3的人员需求;相较于拆标机,满版成品离线自动分离设备的生产效率提高了1倍,且换版时间不超过5 min。此方法为实现商业合版印刷成品的自动分离提供了新的解决方案,带来显著的效率提升和成本降低。
