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Display and enhancement of infrared images

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1 Author(s)

Over the last several years, the author and his colleagues have studied the display and enhancement of IR imagery. A survey of the main results and conclusions is presented in the paper. The IR images which support the work are obtained as 12-bit digitized single frames from PtSi staring cameras designed in a laboratory. In mapping such `raw' image data to 8-bit values for display, one frequently encounters image signals whose dynamic range is well in excess of typical monitor/eye capabilities. A useful division is to group algorithms for such mappings into two broad types: global monotonic mappings, in which the radiometric trend in the raw recorded image is retained in the display; and mappings which drop this constraint. The former set is viewed as the baseline display of an IR image, which ideally is a temperature mapping of the scene, while the latter group is often needed to provide local contrast enhancement. These two types of algorithm are described

Published in:

Image Processing and its Applications, 1992., International Conference on

Date of Conference:

7-9 Apr 1992

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