/usr/include/mia-2.2/mia/template/ is in libmia-2.2-dev 2.2.7-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/mia-2.2/mia/template/bandpass.cxx
/usr/include/mia-2.2/mia/template/bandpass.hh
/usr/include/mia-2.2/mia/template/binarize.cxx
/usr/include/mia-2.2/mia/template/binarize.hh
/usr/include/mia-2.2/mia/template/combiner.hh
/usr/include/mia-2.2/mia/template/combiner_filter.hh
/usr/include/mia-2.2/mia/template/convert.cxx
/usr/include/mia-2.2/mia/template/convert.hh
/usr/include/mia-2.2/mia/template/cvd_io_trait.hh
/usr/include/mia-2.2/mia/template/dimtrait.hh
/usr/include/mia-2.2/mia/template/divcurl.cxx
/usr/include/mia-2.2/mia/template/divcurl.hh
/usr/include/mia-2.2/mia/template/filter_chain.hh
/usr/include/mia-2.2/mia/template/fullcost.cxx
/usr/include/mia-2.2/mia/template/fullcost.hh
/usr/include/mia-2.2/mia/template/invert.cxx
/usr/include/mia-2.2/mia/template/invert.hh
/usr/include/mia-2.2/mia/template/labelmap.cxx
/usr/include/mia-2.2/mia/template/labelmap.hh
/usr/include/mia-2.2/mia/template/lsd.hh
/usr/include/mia-2.2/mia/template/masked_cost.cxx
/usr/include/mia-2.2/mia/template/masked_cost.hh
/usr/include/mia-2.2/mia/template/mi.hh
/usr/include/mia-2.2/mia/template/mi_masked.hh
/usr/include/mia-2.2/mia/template/multicost.cxx
/usr/include/mia-2.2/mia/template/multicost.hh
/usr/include/mia-2.2/mia/template/nonrigidregister.cxx
/usr/include/mia-2.2/mia/template/nonrigidregister.hh
/usr/include/mia-2.2/mia/template/normalize.hh
/usr/include/mia-2.2/mia/template/seededwatershed.hh
/usr/include/mia-2.2/mia/template/similarity_profile.cxx
/usr/include/mia-2.2/mia/template/similarity_profile.hh
/usr/include/mia-2.2/mia/template/ssd.hh
/usr/include/mia-2.2/mia/template/trackpoint.cxx
/usr/include/mia-2.2/mia/template/trackpoint.hh
/usr/include/mia-2.2/mia/template/transformfactory.cxx
/usr/include/mia-2.2/mia/template/transformfactory.hh
/usr/include/mia-2.2/mia/template/watershed.hh