--- a
+++ b/src/mapping.h
@@ -0,0 +1,12 @@
+#include "Rcpp.h"
+#include <opencv2/opencv.hpp>
+#include "opencv2/xfeatures2d.hpp"
+#include "opencv2/features2d.hpp"
+#include "opencv2/shape/shape_transformer.hpp"
+
+#ifndef MAPPING_H
+#define MAPPING_H
+
+Rcpp::NumericMatrix applyMapping(Rcpp::NumericMatrix coords, Rcpp::List mapping);
+
+#endif
\ No newline at end of file