Hi Paul, > JPEG and TIFF both store horizontal and vertical dots per inch in their > headers.
Yep, but in TIFF the tag is called "resolution", not "DPI"... > GIF and BMP don't. I haven't checked other formats, but I expect > any modern format do. Do they store image dimensions, like inches? They must, since when I read in a .bmp file, it knows the exact image size (and resolution). Hum. Are you sure .bmp files don't store resolution? The image I read into PS was 509 x 761 pixels...at 72 PIXELS/inch...and the dimensions were 7.069 x 10.569...obviously, the 72 is a much rounder number to store ;-) Yes, this stuff is REALLY esoteric... Regards, Austin ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
