The Image Detail Enhancement System (IDES)

Bruce A. Horwitz

doi:10.1117/12.955893

21 November 1977 The Image Detail Enhancement System (IDES)

Bruce A. Horwitz

Proceedings Volume 0126, Clever Optics: Innovative Applications of Optics; (1977) https://doi.org/10.1117/12.955893
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

There are many situations in which photographic recordings of imaged data are made under less than ideal conditions. In aerial reconnaissance, ground surveillance, x-ray examinations, and other applications where "retakes" are either undesirable or impossible it is inevitable that some information will have to be extracted from images which are of low contrast due to under or over exposure or to intervening obstructions such as fog, haze, or soft body tissue. This paper will disuss the IDES, which has been designed to increase the intelligence a trained observer may extract from the available images. IDES combines a high quality variable-magnification binocular microscope with the Itek PROM (Pockel's Readout Optical Modulator) to allow an operator to adjust the contrast of the input imagery by changing the image bias while it is being viewed. This contrast adjustment varies continuously from positive to negative, with the intermediate settings resulting in dark contours of constant input intensity appearing in the image. These contours enhance the gradients which form the edges of image details thus making them more visible.

Citation Download Citation

Bruce A. Horwitz "The Image Detail Enhancement System (IDES)", Proc. SPIE 0126, Clever Optics: Innovative Applications of Optics, (21 November 1977); https://doi.org/10.1117/12.955893

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KEYWORDS

Image enhancement

Photography

Crystals

Image processing

Polarizers

Analog electronics

Digital image processing

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