Legacy ImageMagick Discussions Archive

While looking at WikiApiary, I found this thumbnail failure: https://wikiapiary.com/wiki/File:IndianerWiki_Logo.png That lead me to this bug: https://bugzilla.wikimedia.org/41374 A proposed solution there is "Just use GIMP (open, save) to create a 'proper' PNG". Is there any way to get ImageMagick ...

Original user with the problem is here: https://www.mediawiki.org/wiki/Thread:P ... 2_problems

I'm running into a weird error with this image: http://php.med.unsw.edu.au/cellbiology/images/e/e7/Nuclear_reprogramming_03.jpg Running display shows the image. Identify doesn't show anything weird, but convert refuses to convert anything: $ convert --version Version: ImageMagick 6.7.7-10 2012-11-06 ...

fmw42 wrote: rsvg-convert is not an IM command to my knowledge. So I really think this is an RSVG problem and needs to be reported to some RSVG forum.

I do understand that. I'm not asking ImageMagick developers to solve rsvg's problems. I apologize for the confusion.

Note that Ryan provided a work-around that may help anyone who tries to solve this.

Ryan wrote: I fixed the rendering issue with the Iranian flag by making the tekbirs
slightly overlap the central field. Now it will look correct no matter
what thumbnail resolution you request.

Have you tried RSVG vs IM built-in MSVG What version of IM and exactly what command? Platonides gives this information in a follow-up. He doesn't provide information about the version of ImageMagick, though. The Wikimedia cluster was recently upgraded to Ubuntu Precise, IIUC, so that would be ...

We've got a problem with SVG scaling on http://commons.wikimedia.org/wiki/File:Flag_of_Iran.svg. This SVG is being thumbnailed to http://upload.wikimedia.org/wikipedia/commons/thumb/archive/c/ca/20120621203246!Flag_of_Iran.svg/120px-Flag_of_Iran.svg.png when it should look more like http://upload ...

fmw42 wrote:The image is cmyk. IM probably does not resize well unless you convert the image first to rgb (preferably with profiles)

In the original bug report Tim suggests adding "-colorspace rgb". Would that help? Would it hurt images that are not cmyk?

From this bug report : This image looks ok: https://upload.wikimedia.org/wikipedia/commons/thumb/3/3b/P.J._Proby_2007.jpg/96px-P.J._Proby_2007.jpg But if you take the 263px version (size for inside a dutch infobox, the image seems to be rendered completely wrong (darker): https://upload.wikimedia ...

magick wrote:Note, the correct conversion is:

• convert Blason_Saint-Malo.xcf -background transparent -flatten x:

Thanks, I'll try to get that committed.

Some more tests for the patch. This file , for example, which turns into https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Blason_Saint-Malo.xcf/120px-Blason_Saint-Malo.xcf.png should look like http://mah.everybody.org/Blason_Saint-Malo.png . This map is interesting since it just becomes a ...

could you post a link to the original xcf and good and bad versions of the thumbnail conversion to png with your command line and with the IM version and platform used? File page (contains the following links and images) Direct link to XCF file How ImageMagick converts the XCF file to PNG: https ...

We (Wikimedia) use ImageMagick to convert images to smaller sizes for thumbnails on Commons. We recently added support for Gimp's XCF format and have been relying on convert to take care of the thumbnailing. See https://bugzilla.wikimedia.org/17959 for a bit of that saga. I've now filed https ...