psimage(1gmt) on Linux
The text aa118214b207, as Debian 7 (Wheezy) shipped it.
To plot images (EPS files or Sun raster files) on maps
Flags it lists
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-C -
-E -
-F -
-Gb -
-Gf -
-Gt -
-I -
-K -
-M -
-N -
-O -
-P -
-U -
-V -
-W -
-X -
-Y -
-c