[magick-users] Magick++ with QT

[duc.sequere.aut.de.via.decede at imagemagick.org]

> while writing image to Blob is too slow

Odd, we read and write 4096x4096 images in sub-second time.
If you get a chance, download ImageMagick 6.4.1-2 Beta from
ftp://magick.imagemagick.org/pub/ImageMagick/beta.  This pending release
has a refactored pixel processor that is probably as fast as its ever
going to get.  Also, set the environment variable MAGICK_DEBUG to "cache"
to ensure the pixel cache is in memory, not disk.  A disk pixel cache
is expected to be slow.