Thank you for the link, that certainly looks an interesting system. It does go into chromatic inversion in a few places, although the emphasis seems to be on generating a new style by modifying many aspects at once, such as the rhythm and the time intervals between notes.
Do you know if the software is available to try out at all? I'm also a computer programmer, and may do a bit of utility software along these lines, perhaps something to automate the inversion process so that many melodies can be quickly inverted and compared, in order to spot potential strong inversions.
Also, what I've found with inversion so far is that generally it leaves a large amount of room for personal expression, with inversions normally requiring significant melodic and/or rhythmic changes to sound coherent, so designing a program to automate that would be very difficult indeed!