In this paper a unified model for both detection and restoration of line scratches on color movies is presented. It exploits a generalization of the light diffraction effect for modeling the shape of scratches, while perception laws are used for their automatic detection and removal. The detection algorithm has a high precision in terms of number of detected true scratches and reduced number of false alarms. The quality of the restored images is satisfying from a subjective (visual) point of view if compared with the state-of-the-art approaches. The use of very simple operations in both detection and restoration phases makes the implemented algorithms appealing for their low computing time. Copyright © 2008.
Removal of color scratches from old motion picture films exploiting human perception / Bruni, Vittoria; Paola, Ferrara; Domenico, Vitulano. - In: EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING. - ISSN 1687-6172. - ELETTRONICO. - 2008:1(2008), p. 352986. [10.1155/2008/352986]