-option "input" i "Input image filename" string required
-option "output" o "Output image filename" string required
-option "size" N "Size in pixel of extrusion" int no default="1"
-option "spacing" s "Spacing of the new dimension" double no default="1.0"
-option "origin" - "Origin of the new dimension" double no default="0.0"
+option "input" i "Input image filename" string required
+option "output" o "Output image filename" string required
+option "size" N "Size in pixel of extrusion" int no default="1"
+option "spacing" s "Spacing of the new dimension" double no default="1.0"
+option "origin" - "Origin of the new dimension" double no default="0.0"