>Francoism thank you. So, if the original image is in 12-bit depth and I want
>to resize it for example to 200% which commands I have to use for the best
>quality possible (I don't matter the time spent)

>depth 8 or 16?

>lanczos or mitchell?

>force -quality 100?

You can use '-depth 16' which Gimp will open (and complain about) - it makes a 
48 bit image rather than 24 bit.
In Gimp I use Lanczos for resizing but;

Again you will be better off asking the question in the IM forum - very clever 
people there.
http://www.imagemagick.org/discourse-server/  in the 'users' section.

rich (via gimpusers.com)
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