For your information. See also the thread on VP
-------- Original Message --------
Subject: resizing big images will get faster next week
Date: Fri, 12 Jul 2013 16:59:04 -0700
From: Sumana Harihareswara <sumanah(a)wikimedia.org>
Organization: Wikimedia Foundation
To: Coordination of technology deployments across languages/projects
<wikitech-ambassadors(a)lists.wikimedia.org>
CC: qa(a)lists.wikimedia.org
Thursday July 18th, we're going to deploy something new on the sites:
VipsScaler -
https://www.mediawiki.org/wiki/Extension:VipsScaler .
Upside: Resizing big images will be faster and more reliable, leading to
fewer errors -- no matter whether you get a different size by clicking
on a link like "Other resolutions: 320 в 239 pixels" or hand-editing the
filename to
https://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Thompson-Pond-200…
. Also, right now, there is an "area limit"- we don't thumbnail
images bigger than
50 MP. The area limit will
go away; that should be nice for Wiki Loves Monuments! (There will
still be a filesize limit, of bytes).
Downside: We'll see slight changes in visual quality, and a few images
might break. We've already tested this ourselves, but we'd love more
testing ahead of time to check for bugs so we can fix them early next week.
There's a test page at
https://test2.wikipedia.org/wiki/Special:VipsTest
that you can use to test this and find bugs before we roll this out on
Thursday the 18th. I'm about to notify Commons on-wiki, but I'd
especially welcome more help liaising with Commons on this.
Thanks to volunteer Bryan Tong Minh who wrote most of the code, and to
WMF's Greg Grossmeier, Jan Gerber, and Tim Starling for working on this!
--
Sumana Harihareswara
Engineering Community Manager
Wikimedia Foundation
