On Fri, 2012-03-23 at 17:17 +0100, Olivier wrote: > The quality rate of JPEG is not a percentage, simply a rate between 0 and 100.
A number in the range 0 to 100 is actually by definition a percentage ;-) GIMP tries to detect the compression that was used for the original image and uses those settings if they're known. The GIMP numbers are *not* the same as for PhotoShop - 75% in gimp is not the same as 75% in photoshop. > To my knowledge, the suggested quality rate is a part of the > photograph. My camera suggests 90, my daughter's camera suggests 93, > and I always decrease it to 85, or export to PNG. I get 97% suggested with my Canon EOS camera. You should always save to a lossless format such as PNG if you might need to work on the image again in the future - every time you load and save a JPEG file the quality is reduced and information is lost. Liam -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ -- Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/ Pictures from old books: http://fromoldbooks.org/ Ankh: irc.sorcery.net irc.gnome.org www.advogato.org _______________________________________________ gimp-user-list mailing list gimp-user-list@gnome.org http://mail.gnome.org/mailman/listinfo/gimp-user-list
