11541
Accession Number
24201
Author
Casazza, Ornella; Franchi, Paolo
Title Of Article Chaper
Trattamento digitale delle immagini e conservazione e restauro di opere d'arte
Title Of Journal Book
Critica d'arte
Volume
50
Issue
4
Pages
71-78
Collation
6 color illus.
Language Of Text
Italian
Literature Type
Serial
Literature Level
Analytic
Abstract
Reviews the physical phenomenon of light and color perception by the human eye and explores the possibilities of taking, storing, and reading the codified information on image elements (pixels) obtained by electronic or optic scanning techniques. Subsequently discusses how this information may be manipulated to aid in setting up an objective methodology for the stabilizing treatment of damaged, important paintings. An experiment conducted at the IBM Scientific Center of Rome in collaboration with the Opificio delle Pietre Dure and Laboratori di Restauro of Florence is reported. The method known as chromatic selection and abstraction was applied to the restoration of Cimabue's * 2Crucifix*1 (Florence) seriously damaged by the 1966 flood. The aim was to eliminate all subjective decisions regarding the color treatment of the missing areas, whose function was to provide a connective medium to the eye rather than act as a disturbing element. A medium value based on all recorded pixels was calculated and the resulting neutral tone used to fill in lacunae. A quantitative analysis of the information obtained from a digitized photograph of the <i>Crucifix</i> after restoration using IBM system 7350 was carried out; the results were used in a simulated restoration; the problems encountered and currently under study are discussed, the main one being posed by the presence of a visible transition zone on the borders of the filled-in lacunae. -- AATA
Keywords
<i>Crucifix</i> Cimabue (Cerri di Pepe, ca. 1240-ca. 1302) Imaging;Human Light Perception;Optical Scanning;Painting Image Digital processing; IBM Scientific Center (Rome, Italy); Opificio delle Pietre Dure (Rome, Italy); Laboratori di Restauro (Florence, Italy) AATA
pub_id
11541
Title Translation
Digital processing of images and conservation and restoration of works of art