Debug to INR file in example.

examples/image_visu.py

@@ -62,7 +62,7 @@ print("Z-slice copy of 3D array is C-contiguous:", arr_3d[:,:,1].copy().flags.c_
 # ------------------------------------------------------------------------------
 
 # Defines the image to read:
-img_name = 'p58-t0_INT_down_interp_2x.tif'
+img_name = 'p58-t0_INT_down_interp_2x.inr'
 img_path = shared_data(img_name)
 # Read this file with vt.vtImage:
 vt_im = vtImage(img_path)