8 December 1977 Optical Restoration Of Fogged Photographs
Author Affiliations +
Proceedings Volume 0118, Optical Signal and Image Processing; (1977); doi: 10.1117/12.955675
Event: 21st Annual Technical Symposium, 1977, San Diego, United States
Abstract
Investigation of optical spatial filtering as a method for restoring fogged photographic imagery indicates that acceptable restorations are possible if the exposure pattern features a low contrast or a low fogging level. At higher contrast or fogging levels, the restoration procedure suffers significant error. The error, which is due primarily to the nonlinear nature of the photographic process, appears as a failure to reproduce the lightly exposed regions of the photographic transparency.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David G. Falconer, "Optical Restoration Of Fogged Photographs", Proc. SPIE 0118, Optical Signal and Image Processing, (8 December 1977); doi: 10.1117/12.955675; https://doi.org/10.1117/12.955675
PROCEEDINGS
5 PAGES


SHARE
KEYWORDS
Photography

Transmittance

Transparency

Modulation

Electronic filtering

Spatial filters

Image processing

RELATED CONTENT

Analogue Image Processing In Japan
Proceedings of SPIE (July 09 1976)
Image Processing With A Fabry-Perot Interferometer
Proceedings of SPIE (August 22 1980)
Coherent Image Processing With Coupled Prisms
Proceedings of SPIE (January 01 1987)
Restoration Of Linearly Smeared Transparencies
Proceedings of SPIE (April 01 1969)
Scaled specklograms application
Proceedings of SPIE (March 10 1998)

Back to Top