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A program system for displaying and analyzing IR-background-images is presented. This system allows analysis of image data -- statistical and textural parameters of the entire scenery or of a predefined image section -- for a specified scenery image series. Subsequently, statistical relationships like correlations between image parameters on the one hand, and meteorological parameters as well as time of day and season on the other hand, are evaluated. Results will predominantly be used for the development and validation of tactical decision aids for IR-range forecasts. In addition, evaluations might be of interest for performance assessment of camouflage and EO-systems efficiency. Actually, the program system is being applied to the evaluation of two data sets, each of them comprising measurements (infra-red images with synchronous weather data) over one year. One data set was obtained in norther Germany, the other one in southern Germany. The data base contains a total of about 12,000 IR-images, for a variety of specified sceneries, seasons, and weather situations. Some preliminary results are shown and discussed.
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