Inspecting device for color print separation plate |
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| 申请号 | JP19247883 | 申请日 | 1983-10-17 | 公开(公告)号 | JPS6084543A | 公开(公告)日 | 1985-05-13 |
| 申请人 | Ikegami Tsushinki Co Ltd; | 发明人 | SASAOKA TAKESHI; OKADA TAKAO; SHIMANE KOUICHI; | ||||
| 摘要 | PURPOSE:To obtain a digital image signal of high quality by photographing a color original by an image pickup device which makes a mechanical subscan by using a semiconductor line sensor. CONSTITUTION:A print separation plate 1 is placed on an original placing plate 2 and a camera head 5 equipped with the semiconductor line sensor 8, its driving mechanism 5, and an optical system 15 is provided above the plate. The output of the camera head 5 is applied to a camera control unit 18 to make shading corrections. The image signal is sent to a memory part 32 and is stored in a frame memory in the form of color signals Y, M, C, and BL, and they are sent to a video signal processing part 41 after the enlargement, reduction, etc., of the image. Then, plate inspection is performed by a digital switcher 42, negative- positive converting circuit 43, flat etching circuit 44, and contrast adjusting circuit 45, and said color signals are converted by a color reproducing circuit 46 into R, G, and B signals, which are supplied to a color monitor 59. | ||||||
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| 说明书全文 | |||||||
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