https://bugzilla.wikimedia.org/show_bug.cgi?id=32721
--- Comment #9 from John Cupitt <[email protected]> 2012-03-19 12:28:17 UTC --- vips-7.28 is now officially out and includes sequential mode read. In this mode, vips streams the image from the file format read library, caching just a few hundred scan lines behind the read point. Operations which do large coordinate transforms will fail, but operations which operate more-or-less sequentially (like downsizing) work fine. $ time vipsthumbnail Chicago.png --size 800 --interpolator bicubic -o tn_Chicago-vips.jpg real 0m5.775s user 0m5.632s sys 0m0.132s peak RES: 150M For comparison, the roughly equivalent ImageMagick command: $ time convert Chicago.png -thumbnail 800 tn_Chicago-magick.jpg real 0m6.223s user 0m5.420s sys 0m0.848s peak RES: 950M And the generated images: http://www.vips.ecs.soton.ac.uk/development/tn_Chicago-vips.jpg http://www.vips.ecs.soton.ac.uk/development/tn_Chicago-magick.jpg The vips image is better quality, in my opinion, though maybe the sharpening is a bit too aggressive. -- Configure bugmail: https://bugzilla.wikimedia.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. You are on the CC list for the bug. _______________________________________________ Wikibugs-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
