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作为图像信息输入的经典技术手段,在印前领域中,扫描仪曾经发挥了不可替代的重要作用。主宰图像印前制版数十年的电子分色机,其核心技术之一就是高分辨力图像扫描技术。在后续的“桌面出版”以及当前的全数字印前技术中,图像扫描技术仍然占据着十分重要的地位。近年来,数字照相机和数字摄影技术的迅速发展,构建了图像输入的另一种有效途径,对扫描技术的应用构成了竞争。本文将对图像扫描技术原理、特点和应用进行分析,以此推动图像扫描技术的合理应用。
As a classical technique of image information input, scanners have played an irreplaceable important role in the prepress field. One of the core technologies that dominates the electronic color separation machines for image prepress for decades is the high resolution image scanning technology. In the follow-up “desktop publishing ” and the current all-digital prepress technology, image scanning technology still occupies a very important position. In recent years, the rapid development of digital cameras and digital photography technologies has established another effective way of image input and has competed with the application of scanning technology. This article will analyze the principle, characteristics and application of image scanning technology in order to promote the rational application of image scanning technology.