Image Processing in AU3 - IMAGEMAGICK
I saw someone mentioning IMAGEMAGICK in the support site,
and I remembered it has a huge number on command line options.
The later version has as well an COM object, that exposes all cmd line options via the object.
IMAGEMAGICK - COM Object
Perfect for AU3 wouldn't you say.
There are about 200 cmd line options. IMAGEMAGICK - Command line Options
This will get you all started.
; Initialize error handler
$oMyError = Ob