  In this paper we introduce the software package ProPane, written for the R
data analysis language. ProPane combines the full range of wcslib projections
with the C++ image manipulation routines provided by the CImg library. ProPane
offers routines for image warping and combining (including stacking), and
various related tasks such as image alignment tweaking and pixel masking. It
can stack an effectively unlimited number of target frames using multiple
parallel cores, and offers threading for many lower level routines. It has been
used for a number of current and upcoming large surveys, and we present a range
of its capabilities and features. ProPane is already available under a
permissive open-source LGPL-3 license at github.com/asgr/ProPane (DOI:
10.5281/zenodo.10057053).
