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自60年代以来,彩色制版主要采用电子分色机,它采用光扫描的方法并借助于电子计算机,将彩色原稿直接制成图像的分色软片,使传统的手工操作和照相制版方法由计算机完成。它不仅提高了彩色制版的质量,而且也大大缩短了制版周期,为彩色制版的标准化、规范化、自动化创造了有利条件。随着科学技术的飞跃发展,1984年出现了世界上第一台黑白扫描仪,1989年又推出了彩色扫描仪,很大程度上取代了电子分色机的功能。进入90年代,随着计算机的普及与发展,彩色印前系统如雨后春笋般地蓬勃发展起来,彩色扫描仪已广泛应用于广告业、轻印刷、报业、出版业等各个领域。作为计算机的图像输入设备-彩色扫描
Since the 1960s, color plates have mainly adopted electronic color separators. They use optical scanning methods and use electronic computers to make color documents directly into color separations of images, enabling traditional manual processes and photolithography processes to be performed by computers . It not only improves the quality of color plate making, but also greatly shortens the plate making cycle, which has created favorable conditions for the standardization, standardization and automation of color plate making. With the rapid development of science and technology, the world’s first black and white scanner appeared in 1984 and the color scanner was introduced in 1989, largely replacing the functions of electronic color separators. Into the 90’s, with the popularization and development of computer, color prepress system has mushroomed to flourish, color scanner has been widely used in advertising, light printing, newspapers, publishing and other fields. As a computer image input device - color scanning