Digitization of the O'Gorman's mural at the central library of the National University of Mexico

Geneviéve Lucet, Araceli Casas, Carlos Chanfón

«Archeologia e Calcolatori» 1996, 7, 955-961

Abstract

A discussion is made about the problem of the graphic registering of a large mural, symbol of the Mexican culture of the fifties. Vantages of digital information are well known. Nevertheless, digitization of a 3712 m2 mural in order to capture information of the state of the mural before and after restoration, and analyse damages applying image processing tools, oblige to a solution that takes into account the particularities of the problem. The solution must ensure high precision of the survey to be a tool for restorators and must control general snapshot conditions to obtain images with equal characteristic that will allow the repetition of the same algorithm for the "Computer Aided Restoration" step. How were selected pixel definition, image size, camera location, image acquisition and digitization systems, and enlightenment condition was controlled? These are the topics developed in the present work.

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