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spurgeon
54 Posts |
 Posted - Nov 06 2018 : 09:38:07
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We are using an older version of ImageMagick (6.9.0-Q16) with ImageEn, and we are trying to update to ImageMagick 7 using the Windows build (VisualMagick). There is an antialiasing issue with some vectors (SVGs, TTF, DFONT) when loaded with ImageEn, and I was wondering if it had to do with ImageMagick 7 update and/or how ImageEn integrates with ImageMagick via iemiscplugins.pas.
Below are samples of what I'm seeing. ImageMagick 6 and convert.exe from the newest VisualMagick build (ImageMagick 7) have antialiasing, but the images are not antialiased when loaded via ImageEn.
DroidSans.ttf (IM7 convert.exe vs. ImageEn)
3d-glasses.svg (IM7 convert.exe vs. ImageEn)
Sample files:
attach/spurgeon/201811693028_samples.zip
101.74 KB
This is kind of a black box for me since I'm not too familiar with ImageMagick source or how ImageEn integrates with pixel handling and such. One helpful resource about changes in ImageMagick 7:
https://imagemagick.org/script/porting.php
We are building VisualMagick using VS2013 from the Github instructions here:
https://github.com/ImageMagick/ImageMagick-Windows
Thanks for any help you can provide. |
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spurgeon
54 Posts |
Posted - Nov 07 2018 : 09:14:08
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| Quick update: As a workaround for this issue, I'm just using convert.exe for certain formats. I would still appreciate insight anyone might have, though, since it would be better not to use convert.exe. |
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xequte
38313 Posts |
Posted - Nov 08 2018 : 16:18:30
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Hi
I'm afraid I'm not sure. I have reviewed the code, and cannot see anything amiss. You might want to step into the iemiscplugins code as you load the file, and see if you can find anything, particularly with regard to the alpha channel.
Nigel
Xequte Software
www.imageen.com
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spurgeon
54 Posts |
Posted - Nov 09 2018 : 11:06:34
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| Thanks for the reply. We'll continue to investigate this on our end and will stick with our workaround until we can find a fix. |
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ImageMagick 7 (VisualMagick) Antialiasing Issue
