Removal of Scratches from Photographic Film
نویسندگان
چکیده
منابع مشابه
Removal of blotches and line scratches from film and video sequences using a digital restoration chain
Line scratches and blotches are two of the most common and annoying artifacts of image sequences. A digital restoration chain for the removal of these artifacts was conceived and implemented. The basic elements of the chain are the digital encoder, the artifact generator, the artifact detectors, the interpolators and the quality measurer. The digital encoder has the mission to convert analogue ...
متن کاملComprehensive Solutions for Removal of Dust and Scratches from Images
Dust, scratches or hair on originals (prints, slides or negatives) distinctly appear as light or dark artifacts on a scan. These unsightly artifacts have become a major consumer concern. There are several scenarios for removal of dust and scratch artifacts. One scenario is during acquisition, e.g., while scanning a photographic media. Another is artifact removal from a digital image in an image...
متن کاملRemoval of Vertical Scratches in Digitised Historical Film Sequences Using Wavelet Decomposition
Movie films are often damaged through ageing, chemical changes and contact with mechanical parts of the film projector. In this paper methods for the detection and removal of vertical scratches in digitised film sequences are discussed. This specific type of scratch arises by the contact of the film material running against a mechanical part of the camera or film projector. The proposed techniq...
متن کاملTwo-photon exposure of photographic film
Photographic film has commonly been exposed by a single-photon absorption mechanism. We determine the conditions for film exposure by direct two-photon absorption. Using subpicosecond laser pulses, we find that two-photon exposure for commercial film has a threshold fluence and an intensity of 0.0008 J/cm2 and 0.0066 TW/cm2, respectively, well below the optical damage threshold. Multiphoton pho...
متن کاملDetection and Removal of Line Scratches in Motion Picture Films
Line scratches are common degradations in motion picture films. This paper presents an efficient method for line scratches detection strengthened by a Kalman filter. A new interpolation technique, dealing with both low and high frequencies (i.e. film grain) around the line artifacts, is investigated to achieve a nearby invisible reconstruction of damaged areas. Our line scratches detection and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 1937
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1752292