Hey e621,

so I've been wondering if it would be possible to improve the thumbnails of line/pencil art images. Right now, especially with bigger images, you can barely make out what's going on which, at least for me, means I will miss great stuff sometimes. I've looked at the Danbooru source code (https://github.com/r888888888/danbooru/blob/master/lib/danbooru_image_resizer/danbooru_image_resizer.rb) and saw that it uses imagemagick with the settings -resize 150x125 -quality 90 -interlace plane (for the console version) so I tried a bunch of additional options to improve the result. I've uploaded them here: http://uploadmb.com/dw.php?id=1401498774&/montage.png (wasn't sure if that's appropriate for uploading on e6).

I think anti-aliasing and sharpening by a bit helps. Not sure if those options would ruin other styles of art though, so maybe it would have to be conditional. For example, if the image contains 90% of a single colour (white in the example) it should be sharpened.

Test image is https://e621.net/post/show/489206 by the way.

Even less helpful is when a thumbnail is a solid color...