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Proceedings Paper

Enhancement of improperly exposed photographic color negatives
Author(s): Genevieve Dardier; Jon Yngve Hardeberg; Hans Brettel
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Paper 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.

Paper Details

Date Published: 22 December 1998
PDF: 13 pages
Proc. SPIE 3648, Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts IV, (22 December 1998); doi: 10.1117/12.334583
Show Author Affiliations
Genevieve Dardier, Ecole Nationale Superieure des Telecommunications (United States)
Jon Yngve Hardeberg, Ecole Nationale Superieure des Telecommunications (Norway)
Hans Brettel, Ecole Nationale Superieure des Telecommunications (France)


Published in SPIE Proceedings Vol. 3648:
Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts IV
Giordano B. Beretta; Reiner Eschbach, Editor(s)

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