凡用过扫描仪或彩色输出设备的人们,可能都已注意到用扫描仪扫的彩色图像和原稿色彩并不一样,有的甚至相差很大;同样,从输出设备输出的彩色图像和显示器显示的颜色也有很大的颜色差异,这究竟是为什么呢?其原因之一是它们所能表达的颜色范围不同;其二是呈色方式不同。如扫描仪和显示器一般采用红(R)、绿(G)、蓝(B)三原色的加色呈色法,而输出设备一般采 Anyone who has ever used a scanner or a color output device may have noticed that the color image scanned by the scanner is not the same as the color of the original, and some are even quite different. Similarly, the color image output from the output device and the display Of the color is also a great color difference, which is why? One of the reasons is that they can express a different range of colors; the second is the color of different ways. Such as scanners and monitors commonly used red (R), green (G), blue (B) three primary color additive coloring method, and the output device generally mining