Shrinking Images
Stewart C. Russell
scruss-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org
Tue Aug 31 15:20:17 UTC 2004
Anton Markov wrote:
>
> And don't forget 'man imagemagick' for more description of all the options.
Actually, it's case-sensitive: 'man ImageMagick' works here. And,
hooray, you can specify the resizing filter with '-filter <type>'.
But it still doesn't have a way of specifying optimal JPEG options
(specifically DCT encoder type), so I might still have to use PPM and cjpeg.
You could do:
for f in *.jpg
do
convert -geometry 25% $f `basename $f .jpg`_x.jpg
done
to create images at 25%, renamed with '_x'. You might want to play with
the JPEG quality options, 'cos the defaults are bad nasty.
Alternatively, if you have your website hosted, I'd hugely recommend
installing Gallery <http://gallery.menalto.com/>. All you need to do is
upload the pictures -- it handles thumbnailing, layout, the lot.
Stewart
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