The traditional way of catching image is to input ct film to computer by scanner, which brings us noises artificially and worsens the image effect.
传统的图像获取方法是将CT胶片通过扫描仪输入到计算机，但这种方法人为的带来了噪声，影响了图像的质量。
As a computer's graphic and image input equipment, scanner has been applied to the fields such as graphic and image processing, publishing and printing, office automation, etc.
作为一种计算机图形和图象的输入设备，扫描仪已广泛应用于各类图形和图象处理、出版印刷、办公自动化等诸多领域。
Electronic page composition system: a complete system comprises the colour scanner, text input, a CPU that provides masking, page assembly, tint applying functions and a laser image setter.
电子排版系统：一套完整的系统设备包括分色机、文字输入机、具有拼版及在版面上加蒙片和平网等功能的中央处理机和激光图文影排机。
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