[X] My Assistant

[CosmicRocker]

I'm not sure that those filter combinations will be more helpful than the one I posted. We need something that specifically targets the infrared fingerprint of hematite, like this image of Snout in Eagle Crater. I'm waiting for a good R5 so I can make one of those.

[JohnVV]

I would not use paint shop

Nip2 would be perfect
http://www.vips.ecs.soton.ac.uk/index.php?title=VIPS
open the images in column A
do the math functions in column B

then turn B into a menu item ( point & click)

after the first you can repeat by opining the images in the correct order then choose this from the menu
simple

Nip / vips has all the math functions built in

in vip's you can do it all from the terminal without the gui overhead
simple bash script would do .

[djellison]

I would not use paint shop
....
in vip's you can do it all from the terminal without the gui overhead
simple bash script would do .

And for those without a background in command line syntax and so on, what you describe lies a great big steep chasm of learning away from being possible.

For that vast majority of people, Paintshop Pro, Gimp or Photoshop is far, far more appropriate.

For those with the skills, what you describe may be ultimately faster - but for most, it's folly to suggest.