On Fri, 21 May 2010 18:17:56 +0000, Dan Nessett wrote: > On Fri, 21 May 2010 19:32:40 +0200, Platonides wrote: > >> Dan Nessett wrote: >>> We are getting a thumbnailer error on a png file of 16 Mpx. This error >>> is: "Error creating thumbnail: Invalid thumbnail parameters". It >>> appears there is an upper bound limitation somewhere, since Wikipedia >>> has a similar problem (e.g., see http://en.wikipedia.org/wiki/ >>> Category:Old_Ordnance_Survey_map_images). >>> >>> Is this a hard limit due to limitations of Imagemagick or is there a >>> global that controls the upper bound on image size that the >>> thumbnailer can handle? >> >> http://www.mediawiki.org/wiki/Manual:$wgMaxImageArea >> >> ImageMagick isn't limited AFAIK. If it has not enough machine memory, >> it will start using files as swap (or perhaps the OOM killer gets >> launched). > > Changed the value of $wgMaxImageArea to 2.5e7 and tried again. The error > message is eliminated, but the thumbnail is missing (a completely > transparent thumbnail is displayed). The base file is a 4kx4k px (15.2 > MB) png file. Any idea why Imagemagick fails to produce a valid (600x600 > px) thumbnail? If not, any hints how to chase down the problem? > > Dan
To see what happens, I tried to convert the file manually from my command line prompt. The command I used was convert -thumbnail 600x600 International_Space_Station_Space_Shuttle_Atlantis_Sun_Transit_2010.png thumb.png It worked perfectly. Might there be a problem related to the long file name? -- -- Dan Nessett _______________________________________________ MediaWiki-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
