> Use -define jpeg:extent=400kb, for example, on your command line to meet
> file size restrictions.  You will need ImageMagick 6.5.8-2 Beta, available
> sometime tomorrow, for this option to work properly.

Hi,

I have been checking the change log from time to time, waiting for a 
hint on this promised new feature. Today I just tried it with IM 6.5.9-0 
(2010-01-11) and saw that it is already working! The documentation 
though still needs to be updated at 
http://www.imagemagick.org/script/command-line-options.php#define

If you apply that option to digital photographs, the files actually get 
a little bit larger than they should, due to the EXIF header, namely the 
thumbnail preview embedded.

You can use jhead (http://www.sentex.net/~mwandel/jhead/usage.html) to 
get rid of either the thumbnail or the entire EXIF header:

Deleting just the thumbnail preview:
jhead -dt photo.jpg

Deleting anything that is not really needed:
jhead -purejpg photo.jpg

Deleting the preview, however, makes up for most of the difference, so 
deleting the entire EXIF header doesn't really pay.

Thanks for adding this option to IM!
Wolfgang Hugemann



_______________________________________________
Magick-users mailing list
[email protected]
http://studio.imagemagick.org/mailman/listinfo/magick-users

Reply via email to