英语翻译If the absorbance of the three process colors were correctly matched to the spectral response of the eye,printing cyan,magenta,and yellow on top of each other would absorb all of the additive primaries(red,green and blue)to produce black.

英语翻译If the absorbance of the three process colors were correctly matched to the spectral response of the eye,printing cyan,magenta,and yellow on top of each other would absorb all of the additive primaries(red,green and blue)to produce black.
英语翻译
If the absorbance of the three process colors were correctly matched to the spectral response of the eye,printing cyan,magenta,and yellow on top of each other would absorb all of the additive primaries(red,green and blue)to produce black.In practice,overprinting these three colors creates a dark brown,so to enable a wider range of densities to be printed a black ink must also be used.The black also enhances the edges of an image and reduces the amount of expensive colored inks that need to be used.The four colors cyan,magenta,yellow,and black are often abbreviated as CMYK,with the last letter of the word black used instead of the first to avoid confusion with blue.Many people in the praphic arts industry refer to cyan and magenta as"process blue"and"process red"(or,confusingly,as just blue and red).
As well as any pigment that may be present,substrates have other properties that affect color appearance.The precise way in which a surface reflects the light that falls on it will be crucial to the appearance of color;hence properties such as gloss,texture,absorbency,and fluorescence must be considered when choosing or comparing colors.These properties cannot be reproduced on a computer monitor.
The gloss of a surface is determined by the way in which light is reflected from it.The greater the proportion of incident light that is reflected at the sameangle as it strikes the surface,the glossier the surface appears.A surface that scatters light randomly has a diffuse appearance.Paper gloss depends mainly on smoothness and the type of surface coating applied.It can also be altered by finishes,such as varnishing and laminating.
Textured surfaces and pearlescent and metallic inks affect appearance by changing the way in which light is scattered and reflected.Absorbent papers make colors look duller and darker and can also make hues seem slightly redder.
Fluorescence occurs when ultraviolet radiation from just outside the visible spectrum is absorbed and re-emitted as visible light,thus increasing the total amount of light refected from a surface.Fluorescent brightening agents are commonly added to paper and boards to make them brighten and whiter and to increase the possible density range that can be achieved when printing on them.

英语翻译If the absorbance of the three process colors were correctly matched to the spectral response of the eye,printing cyan,magenta,and yellow on top of each other would absorb all of the additive primaries(red,green and blue)to produce black.
如果吸收的三色过程中,正确匹配的光谱响应的眼睛,印刷青色,洋红,黄色 加上对方将吸收所有的添加剂初选(红色,绿色和蓝色)出示black.in实践,overprinting这三种颜色 创造了暗褐色,为了使更广泛的密度须印黑色油墨,还必须 used.the黑色也提升了可贵的图像,并减少了昂贵的彩色墨水的需要 状四色青色,品红,黄色和黑色往往简称为cmyk,最后信件的文字用黑色代替 对第一,为了避免引起混乱与blue.many人民在praphic艺术产业是指青色,洋红"进程 蓝"和"过程红"(或笼统,只是蓝色和红色).以及任何色素,可现在,衬底其他性质,影响外观颜色精确地在 一种表面反映了明灯,落在这将是至关重要的外观色泽; 因此特性,例如 光泽,纹理,吸光度和荧光时必须考虑的选择还是比较colors.these物业不能复制一台电脑监视器.光泽的表面,是由何种方式光线反射it.the更大比例 入射光即反映在sameangle作为它打击面,glossier表面appears.a表面 scatterslight随机已漫appearance.paper光泽主要取决于平滑型表面涂层能applied.it 也将改变饰面,如varnishingandlaminating.揉搓表面和珠光和金属油墨影响外观的改变该光散reflected.absorbent 论文使色彩显得duller和黑暗,也可以阴冷似乎稍微redder.荧光发生时,紫外线辐射从外面可见光谱吸收和再音量为可见光,从而增加 总额轻refected从surface.fluorescent增白剂补充常用纸张和议会,使他们 brightenandwhiter,并把可能的密度范围时,才能得到印刷出来.