19 December 1985 Histogram Specification Techniques For Enhancement Of High Altitude Aerial Digital Images
Author Affiliations +
The brightness histogram of low altitude aerial images can be used to develop a transformation function which reduces the atmospheric degradation in satellite imagery. The general approach is to histogram specify the satellite image to the low altitude reference image in a spectral band serial fashion. The reference histogram(s) need not be derived from an image context similar to the satellite image. The nature of the transformations are examined using the first several moments of the brightness distributions. Results are shown in which Landsat Thematic Mapper "visible images" (band 1, 2, and 3) are processed using low altitude image histograms as the specification functions. This transformation technique can be more effective than many interactive point processing methods, without requiring the time and expense of an expert image analyst. The limitations of the context free nature of the reference distribution is discussed. The potential for the application of this technique to general interactive point processing is described, along with possible application to other image classes.
© (1985) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph D. Biegel, "Histogram Specification Techniques For Enhancement Of High Altitude Aerial Digital Images", Proc. SPIE 0575, Applications of Digital Image Processing VIII, (19 December 1985); doi: 10.1117/12.966491; https://doi.org/10.1117/12.966491

Back to Top