Enhancement of improperly exposed photographic color negatives

Genevieve Dardier; Jon Yngve Hardeberg; Hans Brettel

doi:10.1117/12.334583

22 December 1998 Enhancement of improperly exposed photographic color negatives

Genevieve Dardier, Jon Yngve Hardeberg, Hans Brettel

Proceedings Volume 3648, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts IV; (1998) https://doi.org/10.1117/12.334583
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

This paper addresses digital techniques used to automatically correct those color photographs whose range of transmittance densities is too large for visually acceptable image reproduction. The first step consists in calibrating the image acquisition devices, and results are shown for two different models. Then, we present a method inspired by photographic techniques that uses modified binary masks to enhance negatives of too high contrast. This method can be applied in an industrial environment such as in photographic mini-laboratories.

Citation Download Citation

Genevieve Dardier, Jon Yngve Hardeberg, and Hans Brettel "Enhancement of improperly exposed photographic color negatives", Proc. SPIE 3648, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts IV, (22 December 1998); https://doi.org/10.1117/12.334583

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