This application takes a list of cubes and an image overlap list file from the output of findimageoverlaps and calculates statistics on all overlapping polygons of the provided images, writing the results to an output file. The statistics generated by this application may provide useful information for choosing parameters for the autoseed application. Images must be ingested into ISIS and have spiceinit, footprintinit, and findimageoverlaps run to produce the input for this application.

Statistics for the area, polygon thickness, and image stack size of the polygons are calculated. These statistics include minimum, maximum, average, standard deviation, and variance. Area refers to the area of the polygon in square meters. Image stack is the number of images that overlap for a given overlap region.

If there are any cubes within the list that do not overlap with any other cube in the list, those cube's filenames are included at the end of the output in the NoOverlap PVL keyword.

This example illustrates how to generate overlap statistics for the following list of three overlapping cubes. overlapstats will calculate the thickness, area, and image count for each of the overlapping polygons that the cubes provided in cubes.lis create, and output these results to stats.txt. Each value in the resulting table will be separated by a tab.

The list of cubes to use	This is the input list of cubes used to create the overlap list which the statistics will be run on.
The file containing image overlap information	This is the file that contains information about the image overlaps. It can be obtained from the findimageoverlaps application.
The resulting stats file	The FULL output of overlapstats will be displayed and written to the filename provided in the TO option. You will notice that there are two different overlaps, which correspond with the two overlaps present in the overlap visualization image (see below).