V. Cappellini, A. Abrardo, M. Lunghi, A. Nozzoli, A. Mecocci, O. Casazza and P. De Rocco
University of Florence and the Uffizi Gallery
In this paper a method to improve the colour accuracy of photographic reproduction of art-works acquired from commercial scanners is described. Currently there exists a wide range of colour scanners. Most low-end devices such as colour desk-top scanners use three channels to acquire images. Many high-end scanners, which obtain very high colour accuracy, use more than three channels. Two images, acquired from two different equipments, are then characterised by a different colour reproduction accuracy and spatial resolution as well. In this paper is described a new method to correct the colours of photographic reproduction of paintings acquired from commercial scanners by comparing them with high colour accuracy reproductions of the same paintings obtained by high-end devices. Furthermore, a client-server application which provides a service of colour correction to any remote host connected to a broad band network, is proposed.