mccutchen/triangulizor — pull request #2 by straup (2012-06-28 17:59:33+00:00)
Title: Let PIL determine file type based on args.outfile extension

Because sometimes you want to squirt EXIF data back in to the pixelated (JPEG) image. See also:

https://github.com/straup/filtr/blob/master/filtr#L580