製版・印刷分野における標準化動向
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概要
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his paper intends to introduce the standardization activities of ISO/TC 130 (Graphic Technology)as related to our research and studies. In Chapter 1, after introducing a little bit about ISO and the standardization activities of ISO/TC 130 in the past decade. the modern construction of graphic systems on which the standards of ISO/TC 130 are based on is explained with a figure ( Fig.1) and description. Fig. 1 shows the typical graphic system constructed from an image capture stage, storage and transfer stage, gamut mapping and reproduction stage, and shows how the conversion of data files between adjacent stages is performed by using device profiles. The ISO/TC 130 standards discussed in WG 2 (Prepress data exchange) are focused on these data flows. The main issue of Chapter 2 focuses on the background and contents of four standardization items as follows ; 1) Measurement and environmental conditions (WG2, WG3) 2) Prepress data exchange and system evaluation tools (WG 2) 3) Prepress process control and related metrology (WG 3) 4) Media and materials (WG 4) In the TC 130 area, the important areas of activity are characterization targets. The detail of input targets (IS0 12641),output targets (IS0 12642) and SCID (IS0 12640) as already standardized are also described in this Chapter. Proper colorimetric measurement procedures for graphic arts applications are the subject of IS0 13655. This is one exceptional standard where we have to develop a fundamental measurement standard because the CIE allows two geometries, two observers, and a variety of illuminants. We also have standards for printing in color, how the process should be controlled, and what color you expect to have on different papers. Printing test was implemented by ANSI (USA),FOGRA (Germany) and Japanes committeee respectively to be referred to snecifications for graphic art printing. The test results had provided the standard characterization data that allow us to develop device profiles in color reproducing systems. Developing standards around color monitors and soft proofing and viewing conditions are work items of ISO/TC 130. The status of these standards is shown in this Chapter. ln conclusion, most of what goes on in ISO is application-specific. It is not fundamental color measurement, imaging etc. What ISO/TC 130 is concemed with is how to apply that fundamental work, done by others, in digitalized graphic arts industries. The objective of these standards is to meet specific commercial needs as robustly as possible. That is the underlying thought that the committeee members involved in the development of ISO standards wanted to have.
- 東京工芸大学の論文
- 2000-01-31
著者
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