Color plays a fundamental role in cultural heritage applications. From frescoes to statues, from paintings to architectures, from photography to films, color is used to engage the public, communicate a message, and as mean of expression of the artists. Although, the color sensation and perception derived from an object of cultural importance depend on the properties of the materials composing it, together with the spatial arrangement in which the colors are inserted and observed. When thinking about real objects, color is not just an esthetical element or only a mean of expression, but it is the consequence of the radiation-matter interaction, which is strictly related to the physical and chemical properties of the material. In this context, modern colorimetry became a fundamental science since the beginning of the last century, when it was first applied to industrial aims. Moreover, since Human-Computer Interaction and computational power are becoming more and more essential in our daily lives, greater importance is given to the digital color representation and to the digital color imaging. In this way the development of instruments, measurement strategies, and tools that can correctly reproduce and represent materials, contrast, and colors as faithful as possible to the original objects is fundamental. The correct reproduction of the color of an object of cultural importance is necessary for many applications (e.g., the analysis of physical color, the light design study, etc.) besides the restoration, preservation, and valorization of the artwork itself. In this essay, we will analyze the main limits of colorimetry as well as the current analytical techniques employed to digitally acquire the color information of physical objects for cultural heritage applications. We will focus on digital color reproduction issues, describing the importance and the difficulty of a correct illumination, and showing some practical examples of problems encountered in the color digitization workflow of physical color.

Digital color acquisition and management of cultural heritage: from spectrophotometry to digital imaging / B. Sarti, A. Plutino, G. Simone (DESIGN INTERNATIONAL). - In: Digitally enhanced design : Breakthrough tools, processes, and expressive potentials / [a cura di] M. Rossi, D. Spallazzo. - Prima edizione. - [s.l] : Franco Angeli, 2021. - ISBN 9788835125716. - pp. 29-46

Digital color acquisition and management of cultural heritage: from spectrophotometry to digital imaging

B. Sarti;A. Plutino;
2021

Abstract

Color plays a fundamental role in cultural heritage applications. From frescoes to statues, from paintings to architectures, from photography to films, color is used to engage the public, communicate a message, and as mean of expression of the artists. Although, the color sensation and perception derived from an object of cultural importance depend on the properties of the materials composing it, together with the spatial arrangement in which the colors are inserted and observed. When thinking about real objects, color is not just an esthetical element or only a mean of expression, but it is the consequence of the radiation-matter interaction, which is strictly related to the physical and chemical properties of the material. In this context, modern colorimetry became a fundamental science since the beginning of the last century, when it was first applied to industrial aims. Moreover, since Human-Computer Interaction and computational power are becoming more and more essential in our daily lives, greater importance is given to the digital color representation and to the digital color imaging. In this way the development of instruments, measurement strategies, and tools that can correctly reproduce and represent materials, contrast, and colors as faithful as possible to the original objects is fundamental. The correct reproduction of the color of an object of cultural importance is necessary for many applications (e.g., the analysis of physical color, the light design study, etc.) besides the restoration, preservation, and valorization of the artwork itself. In this essay, we will analyze the main limits of colorimetry as well as the current analytical techniques employed to digitally acquire the color information of physical objects for cultural heritage applications. We will focus on digital color reproduction issues, describing the importance and the difficulty of a correct illumination, and showing some practical examples of problems encountered in the color digitization workflow of physical color.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/870127
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