spatial-efd: A spatial-aware implementation of elliptical Fourier analysis

Abstract

A Python implementation of the calculation of elliptical Fourier descriptors as described by Kuhl and Giardina (1982). This package is designed to allow the rapid analysis of spatial data stored as ESRI shapefiles, handling all of the geometric conversions. The computed Fourier ellipses can then be written back to shapefiles to allow analysis with other spatial data, or can be plotted using matplotlib (Hunter 2007). The code is built upon the pyefd module (Blidh 2013) and it is hoped that this package will make analyzing spatial data using Fourier ellipses more straightforward.