Last modified: 2012-02-22 12:36:24 UTC
Created attachment 5620 [details] Screen shot IE7 with full-page zoom showing ugly pixels In some circumstances, raster images can get scaled up or down on the client side: * Small source image scaled up to a large size [[Image:Tiny.png|300px]] * GIF image over $wgMaxAnimatedGifArea * Any image scaled on server with no GD or ImageMagick scaling engine available * Any image when browser's full-page zoom is used Many modern browsers use a pretty scaling method, but by default Internet Explorer uses nearest-neighbor which looks awful. Apparently, IE 7 can switch in bicubic scaling via a simple bit of custom CSS: http://code.flickr.com/blog/2008/11/12/on-ui-quality-the-little-things-client-side-image-resizing/ If there aren't unpleasant side effects it may be wise to use this. IE 6 can perhaps do this with the scary filter we're using for Alpha PNGs or a variant, but it's probably not worth expending effort on IE 6 at this point.
Update Web browser.
Adding testme. Please test with Internet Explorer 8 and note the result here.
IE8 seems to be using bicubic scaling by default, which looks much better. (Tested 8.0.6001.18702 on XP SP2 32-bit under VMware.)
I don't think we're gonna bother doing this, nobody likes IE7 and later versions have fixed it upstream. ;)
