| Summary: | 碩士 === 世新大學 === 圖文傳播暨數位出版學研究所(含碩專班) === 95 === Digital proof is widely used as a tool as color confirmation ahead of printing process in current trend of color design; it was considered essentials to both design and printing activities. Hence in 2005, Printing Technology Research Institute positively promoted “ISO Color Certification”, which hopes to provide color standard guideline for printing activities. This research is primarily to provide a discussion on how to achieve digital proof accuracy of spot color through the method of color profiling. The research is comprised of RAL CLASSIC printed patches which are used as electron color patches and two wide-formatted inkjet printers. The purpose of these experiments was to identify the spot color in digital proof presented by using different rendering intent of ICC Profile which carried out both in general and “ISO Color Certification” capable printers. Through the results of experiments we analyzed the most suitable way to match RAL CLASSIC in making digital proof. This report is composed of four experiments for verification. In the first experiment, it was confirmed that Absolute Colorimetric in U.S. Web Coated (SWOP) V2 was a better method in the interaction between Printer profile and rendering intent. In the second experiment among display, printer profile and rendering intent’s interaction, it was approved that the Absolute Colorimetric of Europe ISO Coated FOGRA27 in sRGB color standard and the Perception of Japan Color 2001 in Adobe RGB color standard were the more appropriate methods, and the former was even better than the later one .Another two tests were carried out in the last two experiments, one was to compare the color separation between Photoshop and RIP, and another was the interaction between printer profile and rendering intent. It came out the Europ ISO Coated FOGRA27 Absolute Colorimetric was the proper method either in the two tests. Furthermore, in the third experiment, we learned its RIP rear color separation result was closed to the color deviation in the first experiment where it turned off the color management. This research can be taken as the references to digital printing and color matching in the industry and related fields.
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