Basic Experiment for Reproduction of Polishing Method on Surface of Bronze Mirror

Bae, Chang−Hwan; Cho, Nam Chul; Yun, Yong Hyun

doi:10.37563/sech.14.1.6

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“…그러나 디지털 출력 장치에 따라 색이 달라지는 문제가 발생하였고 (Jo et al, 2004), 이를 해결하기 위해 입⋅출력 장치에 CMS를 적용시켜 개선한 사례들이 보고되면서 활용성이 증대되었 다 (Kim et al, 2005). CMS 연구는 인쇄 (Jung and Kang, 2007) 와 사진 분야 (Kim and Lee, 2008) (Bae et al, 2019;Levinson et al, 2020;Lee and Choi, 2022). 그러나 현재 사용되는 분광측색계는 제조사, 측정환경, 측정방식, 백색 조정판 상태 등 다양한 요인에 따라 측색 수치의 차이가 발생한다 (Johnston et al, 1999).…”

Section: 이 시스템은 기존 물리적 출력물들이 웹 디스플레이unclassified

Study on Influence Factor Analysis and Optimal Methodology for Color Reproduction of Digital Photography of Painted Cultural Heritage

Kim,

2023

J. Conserv. Sci

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The color management system (CMS) for digital photographs of painted cultural heritage requires consideration of the camera as an input device, lighting as a shooting condition, and color charts and spectrophotometers as absolute color standards. Therefore, this study conducted basic experiments to derive the effects of these factors on digital color reproduction and the application methodology. The results showed that the two types of spectrophotometers for CMS and the spectrophotometer used for direct measurement of painted cultural heritage showed almost similar color reproduction, and the digital camera did not have a significant effect on color reproduction regardless of the operating principle, image sensor type, and resolution. Although the color reproduction under the three lighting conditions was execellent overall, the instantaneous and continuous light used in the experiment showed a lower color difference than the LED light. When these optimal conditions were applied to the Dancheong (traditional multicolored paintwork) specimen, the color difference of <i>Δ</i>11.57 before color reproduction decreased dramatically to <i>Δ</i>1.02 after color reproduction. This means that the digital color reproduction process brought the Dancheong specimen has become closer to the true color. Digital photography is an essential recording method in the process of conserving and utilizing cultural heritage. In the absence of manuals or guidelines for digital photography-based color reproduction, basic experimental research has great potential as a methodology for the documentation of painted cultural heritage. In addition, if color reproduction technology is applied to three-dimensional scanning, where the importance of color recording is relatively overlooked, it is believed that the digital recording process can be advanced and actively used for the conservation of painted cultural heritage.

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Section: 이 시스템은 기존 물리적 출력물들이 웹 디스플레이unclassified

Study on Influence Factor Analysis and Optimal Methodology for Color Reproduction of Digital Photography of Painted Cultural Heritage

Kim,

2023

J. Conserv. Sci

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Basic Experiment for Reproduction of Polishing Method on Surface of Bronze Mirror

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Study on Influence Factor Analysis and Optimal Methodology for Color Reproduction of Digital Photography of Painted Cultural Heritage

Study on Influence Factor Analysis and Optimal Methodology for Color Reproduction of Digital Photography of Painted Cultural Heritage

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