align_image_stack(1) on Linux
The text 444fe07b3010, as Debian 6.0 (Squeeze) shipped it.
Align overlapping images for HDR or focus stack creation
Flags it lists
-
-a -
-c -
-e -
-f -
-g -
-h -
-l -
-m -
-o -
-p -
-s -
-t -
-v