I am looking for freeware or "cheap"ware that will quickly and efficiently manipulate tiff images. Basically I would like to be able to take multiple tiff's and add noise to them or decrease the clarity of them. Any ideas are appreciated.
Look at Quicktime - I have done image manipulation - not sure about "tiff" with that and its fairly cheap.
I have not failed. I've just found 10,000 ways that won't work" --Thomas Edison
There are a couple of open source tools you can use. You should be able to find the links to them by doing a quick search.
All free and pretty decent for a base phot viewer, editor.
Insanity: doing the same thing over and over again and expecting different results
imagemagick http://www.imagemagick.org/script/index.php has some commandline tools you may find useful.
definitely check out the GIMP.