Cinematographic film analysis method in a film scanner apparatus
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United States of America Patent
Stats
-
Mar 7, 2000
Grant Date -
N/A
app pub date -
Apr 14, 1997
filing date -
Apr 15, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An analysis method for cinematographic film uses a film scanner for converting the images of the film into video images, the film scanner having a calibration mode providing a standardized video reproduction of films and a manual mode allowing the operator to adjust the film scanner for improving the visual quality of the video images it produces. The method comprises the steps of: a) filming a reference surface under desired lighting conditions to produce a film portion; b) using the film scanner in calibration mode to convert the film portion into video images; c) measuring the mean luminance and chrominance values of a portion of the reference surface in the video images produced in the calibration mode; d) using the film scanner in the manual mode to convert the film portion into video images with desired luminance and chrominance adjustments; e) measuring the mean luminance and chrominance values of a portion of the reference surface in the video images produced in the manual mode; and f) providing information on the mean values obtained in the manual mode relative to the mean values obtained in the calibration mode.
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