"Gabe Schaffer" on wrote...
| On 11/5/06, Anthony Thyssen <[EMAIL PROTECTED]> 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?
|
Oppps.. negate that!!!
It is always lossy!!!
| > and there does not appear to be a lossless cut or crop opperation
| > provided by jpgtran. I'd say you best bet is to just not save back to
| > JPEG, or upgrade to using the new JPG2K library.
|
| The version of jpegtran on my machine (from 1998) has a crop feature,
| and I'm pretty sure that jpegtran doesn't even have the capability to
| perform lossy operations.
|
| I'm going to bet that jpegtran -crop is exactly what the OP wants.
|
Sorry my jpgtran didn't have that option. There may be some
restrictions on how usable it is though.
Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]>
-----------------------------------------------------------------------------
Anthony Thyssen's theory of success (for spammers) :-
Almost anything today will be a success as you only need a minute
percentage of the 5 billion fools in the world, to make it big time.
-----------------------------------------------------------------------------
Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/
_______________________________________________
Magick-users mailing list
[email protected]
http://studio.imagemagick.org/mailman/listinfo/magick-users
