On Wed, 19 Feb 2003, Jim Angstadt wrote: > When I use this syntax: > `convert -geometry $geo -quality $qual $from $to`; > for various values of $qual ( 75 or 85 or 95) there is > no obvious difference in the 'visual' quality of the > images. Also, each comparable file has the same size. > And running diff on any two files yields no > difference. > > So, the files do not seem to be effected by the > '-quality' option. Are the quality and geometry > options mutually exclusive? What am I missing?
Hi Jim, I do see a difference. Here's the listing of my files: -rw-rw-r-- 1 foo 227784 Feb 19 14:43 bbqmap75.jpg -rw-rw-r-- 1 foo 297166 Feb 19 14:44 bbqmap85.jpg -rw-rw-r-- 1 foo 458938 Feb 19 14:44 bbqmap95.jpg -rw-r--r-- 1 foo 1254886 Feb 19 14:42 bbqmap.jpg after running these commands: 1014 convert -geometry 50% -quality 75 bbqmap.jpg bbqmap75.jpg 1016 convert -geometry 50% -quality 85 bbqmap.jpg bbqmap85.jpg 1017 convert -geometry 50% -quality 95 bbqmap.jpg bbqmap95.jpg Please post an example run where you see otherwise. FL _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
