[NBLUG/talk] [WLUG] Lowering resolution on JPGs

Dan Pritts danno at umich.edu
Sun Apr 20 09:08:46 PDT 2008


an alternate method would be to use the netpbm tools.

someting like this would work.
jpegtopnm < fyle.jpg | pamscale .5 | pnmtojpeg -quality 75 > fyle.small.jpg

I've not used imagemagick much so i can't really compare the two;
the netpbm tools are nice because they are very scriptable.


On Sun, Apr 20, 2008 at 09:45:29AM -0400, Brian Stretch wrote:
> -----Original Message-----
> >From: Jack Smith <jack.delbert at gmail.com>
> >Sent: Apr 20, 2008 8:59 AM
> >To: wlug <linux-users at lugwash.org>, "General NBLUG chatter about
> >  anything Linux, answers to questions, etc." <talk at nblug.org>
> >Subject: [WLUG] Lowering resolution on JPGs
> >
> >I can do this one at a time on Gimp, but is there a way to do hundreds at a
> >time?
> 
> http://www.imagemagick.org/script/convert.php I think. 
> --
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danno
--
dan pritts
danno at umich.edu
734-929-9770



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