Tactile prints in colour: Studying the Visual Appearance of 2.5D Prints for Heritage Recreations

Abigail Trujillo-Vazquez¹, Karina Rodriguez Echavarria², Tim Weyrich^3,4

¹ Centre for Print Research, University of the West of England, UK
² University of Brighton
³ Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
⁴ University College London

Abstract

Printing applications for heritage recreation are a means to allow audiences to appreciate details and engage with cultural materials through closer interaction. A 2.5D print is a media suitable to incorporate visual and tactile qualities such as colour, low relief, textures and roughness. Designing a colour-accurate tactile print requires, nevertheless, anticipating how specific shapes and meso-geometries will affect the reflective properties of the surface, thus changing its appearance. Hence, this paper contributes to improve the understanding of the interaction between geometry and colour when deploying 2.5D prints so that tactile portable replicas can be easily produced. For this, we have produced a series of 2.5D printed patches with varying meso-textures, based on procedural noise functions, and measured their colour coordinates and glossiness. We aim to find a correlation between colour shift (expressed as lightness, chroma and ΔE) and the scale and distribution of surface details.

Citation Style: Display Alpha ACM SIGGRAPH IEEEtran Publication

Tactile prints in colour: Studying the Visual Appearance of 2.5D Prints for Heritage Recreations.
Abigail Trujillo-Vazquez, Karina Rodriguez Echavarria, Tim Weyrich.
EG Workshop on Graphics And Cultural Heritage (GCH) Short Papers, 4 pages, Delft, The Netherlands, 28–30 September 2022.Abigail Trujillo-Vazquez, Karina Rodriguez, and Tim Weyrich. Tactile prints in colour: Studying the visual appearance of 2.5D prints for heritage recreations. In Federico Ponchio and Ruggero Pintus, editors, EG Workshop on Graphics and Cultural Heritage (GCH) Short Papers. The Eurographics Association, September 2022.Trujillo-Vazquez, A., Rodriguez, K., and Weyrich, T. 2022. Tactile prints in colour: Studying the visual appearance of 2.5D prints for heritage recreations. In EG Workshop on Graphics and Cultural Heritage (GCH) Short Papers, The Eurographics Association, F. Ponchio and R. Pintus, Eds.A. Trujillo-Vazquez, K. Rodriguez, and T. Weyrich, “Tactile prints in colour: Studying the visual appearance of 2.5D prints for heritage recreations,” inEG Workshop on Graphics and Cultural Heritage (GCH) Short Papers, F. Ponchio and R. Pintus, Eds. The Eurographics Association, Sep. 2022.