/usr/include/camitk-4.0/actions/meshprocessing/ is in libcamitk-dev 4.0.4-2ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/include/camitk-4.0/actions/meshprocessing/AppendMeshes.h
/usr/include/camitk-4.0/actions/meshprocessing/CleanPolyData.h
/usr/include/camitk-4.0/actions/meshprocessing/ComputeCurvatures.h
/usr/include/camitk-4.0/actions/meshprocessing/Decimation.h
/usr/include/camitk-4.0/actions/meshprocessing/ExportAsMDL.h
/usr/include/camitk-4.0/actions/meshprocessing/ExtractEdges.h
/usr/include/camitk-4.0/actions/meshprocessing/ExtractSurface.h
/usr/include/camitk-4.0/actions/meshprocessing/FillWithPoints.h
/usr/include/camitk-4.0/actions/meshprocessing/ICPRegistration.h
/usr/include/camitk-4.0/actions/meshprocessing/InvertMesh.h
/usr/include/camitk-4.0/actions/meshprocessing/LoadTextureFromBMP.h
/usr/include/camitk-4.0/actions/meshprocessing/LoadTransformation.h
/usr/include/camitk-4.0/actions/meshprocessing/MergeMeshs.h
/usr/include/camitk-4.0/actions/meshprocessing/MeshClipping.h
/usr/include/camitk-4.0/actions/meshprocessing/MeshProcessingExtension.h
/usr/include/camitk-4.0/actions/meshprocessing/PlaneWidget.h
/usr/include/camitk-4.0/actions/meshprocessing/SaveDisplacementFromTransformation.h
/usr/include/camitk-4.0/actions/meshprocessing/SmoothFilter.h
/usr/include/camitk-4.0/actions/meshprocessing/WarpOut.h