Photographic printer with sensitivity control for classification of negatives

摘要

A photographic printer includes a sensor system for measuring the optical characteristics of each photographic film frame to be printed at a plurality of defined areas. Based upon the measured optical characteristics, the printer identifies and classifies the film frames into various types of scenes. The exposures used in printing each film frame depend upon the classification of that film frame. A user-selectable control permits the user to vary the sensitivity of the classification of one or more of the types of scenes in essentially a linear fashion.