[Pkg-gmagick-im-team] Bug#789426: imagemagick convert: adaptive-sharpen not working

[Matthias Köhne]

Package: imagemagick
Version: :6.7.7.10-5+deb7u3
Severity: normal

The imagemagick version in wheezy (oldstable) can't sharpen images.
There was a confirmed bug prior version 6.8.5-0:

http://www.imagemagick.org/discourse-server/viewtopic.php?p=97333#p97333


$ time convert -units PixelsPerInch IMG_APR_94_20150517_0003.tif
-density 300 -gravity Center -crop 96%x+0+0 -resize '3072x3072'
-quality 92% "IMG_APR_94_20150517_0003_unscharf.jpg"

$ time convert -units PixelsPerInch IMG_APR_94_20150517_0003.tif
-density 300 -gravity Center -crop 96%x+0+0 -resize '3072x3072'
-adaptive-sharpen 0x5 -quality 92%
"IMG_APR_94_20150517_0003_scharf.jpg"

$ md5sum *.jpg
a185e64f08460063e616ae1a9bf67789  IMG_APR_94_20150517_0003_scharf.jpg
a185e64f08460063e616ae1a9bf67789  IMG_APR_94_20150517_0003_unscharf.jpg


Kind regards
Matthias