Legacy ImageMagick Discussions Archive

Using the parameters suggested here http://www.imagemagick.org/discourse-server/viewtopic.php?f=1&t=23747#p100643 I get the following results, so I don't think this issue can be resolved by tweaking the unsharpen parameters.

convert example.png -unsharp 12x6+0.5+0 -background black -flatten out ...

To give a more precise example I left out resizing and other options and render the result against a black background, here you can clearly see the different results using different ImageMagick versions:

convert example.png -unsharp 0x0.5 -background black -flatten out.png

ImageMagic 6.8.4 ...

For the code below I get different results with different ImageMagick versions:

convert example.png -quality 0 -density 72 -resize 'x30>' -unsharp 0x0.5 out.png


http://magick-problems.s3.amazonaws.com/comp.png

with ImageMagick 6.8.0-10 2013-06-05 it looks fine
with ImageMagick 6.8.4-10 2013 ...