On Wed, Jun 13, 2012 at 11:17 PM, Rob Owens <row...@ptd.net> wrote: > On Wed, Jun 13, 2012 at 12:45:13PM +0200, Randall wrote: >> >> is it possible to have all messages received by the mailinglists MTA >> scanned for pictures and have these automatically scaled to a >> default size before its being redistributed to the receivers on the >> mailinglist and subsequently the forum. >> > craigslist.org seems to do this when you upload pictures of the item > you're selling. I'm not sure how they do it, but I imagine they use the > mogrify command from imagemagick: > > mogrify -resize 800x600 somefile.jpg > > This will overwrite the original somefile.jpg with an 800x600 version of > somefile.jpg > > This gets tricky, because what if the original is taller than it is > wide? The above command will distort the image. >
No it won't. See the table at http://www.imagemagick.org/script/command-line-processing.php#geometry: widthxheight Maximum values of height and width given, aspect ratio preserved. You have to suffix the geometry with a "!" if you want to actually ignore aspect ratio. > You can also: > > mogrify -resize 30% somefile.jpg > > This gives you the correct aspect ratio every time, but what if the > original image was already small? > > Anyway, some food for thought. > -- regards, kushal -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/CAH8GtdNLnM6pL_f5WvN+ZE_X+UhfFTK8fLKzzhQ=jkv3-fs...@mail.gmail.com
