/usr/include/casacore/images/Regions/ is in casacore-dev 2.2.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/casacore/images/Regions/AipsIOReaderWriter.h
/usr/include/casacore/images/Regions/ImageRegion.h
/usr/include/casacore/images/Regions/RFReaderWriter.h
/usr/include/casacore/images/Regions/RegionHandler.h
/usr/include/casacore/images/Regions/RegionHandlerHDF5.h
/usr/include/casacore/images/Regions/RegionHandlerMemory.h
/usr/include/casacore/images/Regions/RegionHandlerTable.h
/usr/include/casacore/images/Regions/RegionManager.h
/usr/include/casacore/images/Regions/WCBox.h
/usr/include/casacore/images/Regions/WCComplement.h
/usr/include/casacore/images/Regions/WCCompound.h
/usr/include/casacore/images/Regions/WCConcatenation.h
/usr/include/casacore/images/Regions/WCDifference.h
/usr/include/casacore/images/Regions/WCEllipsoid.h
/usr/include/casacore/images/Regions/WCExtension.h
/usr/include/casacore/images/Regions/WCIntersection.h
/usr/include/casacore/images/Regions/WCLELMask.h
/usr/include/casacore/images/Regions/WCPolygon.h
/usr/include/casacore/images/Regions/WCRegion.h
/usr/include/casacore/images/Regions/WCUnion.h