1. A geospatial modeling system comprising: a geospatial model data storage device; and a processor cooperating with said geospatial model data storage device and configured to select and transform a reference sample of a geospatial model frequency domain data set into a corresponding reference sample geospatial model spatial domain data set, the geospatial model frequency domain data set having at least one void therein, iteratively inpaint data into the at least one void in the geospatial model frequency domain data set to generate an inpainted geospatial model frequency domain data set, select and transform a test sample of the inpainted geospatial model frequency domain data set into a corresponding test sample geospatial model spatial domain data set, and compare the reference sample geospatial model spatial domain data set and the test sample geospatial model spatial domain data set to determine whether to stop the iterative inpainting based upon a threshold difference between the reference sample geospatial model spatial domain data set and the test sample geospatial model spatial domain data set.