[magick-users] convert -crop image quality question

[Gabe Schaffer]

On 11/6/06, J. Young <jyoung82 at carolina.rr.com> wrote:
> Gabe Schaffer wrote:
> > On 11/5/06, Anthony Thyssen <anthony at griffith.edu.au> wrote:
> >> "J. Young" on  wrote...
> >
> >> | convert bigpage.jpg -crop 50%x0+0+0 page1.jpg
> >> | convert bigpage.jpg -gravity East -crop 50%x0+0+0 page2.jpg
> >> |
> >> | So this works ok, but is it a lossless operation as far as image
> >> | quality?  If not, could someone recommend a lossless equivalent?
> >> |
> >> JPEG to JPEG is always lossless in IM.
> >
> > Always lossless? Did you mean never?

That's strange. Did you check out http://www.jpegclub.org/droppatch.tar.gz ??

GNS