diff --git a/CGAL_ImageIO/examples/CGALimageIO/extract_a_sub_image.cpp b/CGAL_ImageIO/examples/CGALimageIO/extract_a_sub_image.cpp
index d626bd113fa..7927c8430d5 100644
--- a/CGAL_ImageIO/examples/CGALimageIO/extract_a_sub_image.cpp
+++ b/CGAL_ImageIO/examples/CGALimageIO/extract_a_sub_image.cpp
@@ -23,12 +23,12 @@ int main(int argc, char **argv) {
   assert(ymax < image->ydim);
   assert(zmax < image->zdim);
 
-  const int new_xdim = xmax + 1 - xmin;
-  const int new_ydim = ymax + 1 - ymin;
-  const int new_zdim = zmax + 1 - zmin;
+  const auto new_xdim = xmax + 1 - xmin;
+  const auto new_ydim = ymax + 1 - ymin;
+  const auto new_zdim = zmax + 1 - zmin;
 
-  auto *new_image = ::_createImage(new_xdim, new_ydim, new_zdim, image->vx,
-                                   image->vx, image->vx, image->vz, image->wdim,
+  auto *new_image = ::_createImage(new_xdim, new_ydim, new_zdim, 1,
+                                   image->vx, image->vy, image->vz, image->wdim,
                                    image->wordKind, image->sign);
   const auto* const data = static_cast<char*>(image->data);
   auto* new_data = static_cast<char*>(new_image->data);
diff --git a/CGAL_ImageIO/include/CGAL/ImageIO.h b/CGAL_ImageIO/include/CGAL/ImageIO.h
index e4fed7772f1..2153a6d74b8 100644
--- a/CGAL_ImageIO/include/CGAL/ImageIO.h
+++ b/CGAL_ImageIO/include/CGAL/ImageIO.h
@@ -319,8 +319,8 @@ CGAL_IMAGEIO_EXPORT void _freeImage(_image *im);
     @param w image word size in bytes
     @param wk image word kind
     @param sgn image word sign */
-CGAL_IMAGEIO_EXPORT _image *_createImage(int x, int y, int z, int v,
-                                         float vx, float vy, float vz, int w,
+CGAL_IMAGEIO_EXPORT _image *_createImage(std::size_t x, std::size_t y, std::size_t z, std::size_t v,
+                                         double vx, double vy, double vz, std::size_t w,
                                          WORD_KIND wk, SIGN sgn);
 
 
diff --git a/CGAL_ImageIO/include/CGAL/ImageIO_impl.h b/CGAL_ImageIO/include/CGAL/ImageIO_impl.h
index c91d700a254..b0681331d84 100644
--- a/CGAL_ImageIO/include/CGAL/ImageIO_impl.h
+++ b/CGAL_ImageIO/include/CGAL/ImageIO_impl.h
@@ -623,8 +623,8 @@ _image *_initImage() {
 }
 
 CGAL_INLINE_FUNCTION
-_image *_createImage(int x, int y, int z, int v,
-		     float vx, float vy, float vz, int w,
+_image *_createImage(std::size_t x, std::size_t y, std::size_t z, std::size_t v,
+		     double vx, double vy, double vz, std::size_t w,
 		     WORD_KIND wk, SIGN sgn)
 {
   _image *im;