Image quality evaluation in the field of digital film restoration

Digital film restoration is a significant hope for cinematographic archivists. Technical progress, more powerful machines at lower cost, makes it possible nowadays to restore cinematographic archives digitally at acceptable paces. Several digital restoration techniques have emerged during the last decade and became more and more automated but restoration evaluation remains still a rarely tackled issue. After presenting the several defects than can affect cinematographic material, and the film digital restoration field, we present in this paper the issues of image quality evaluation in the field of digital film restoration and suggest some reference free objective measures.