Thumbnail cache database: use WebP compression

Ideas for improvements and requests for new features in XnView Classic

Moderators: XnTriq, xnview

Post Reply
User avatar
Posts: 26
Joined: Sun Mar 11, 2007 1:29 pm

Thumbnail cache database: use WebP compression

Post by wOxxOm » Mon Mar 16, 2015 2:53 am

It's well known that WebP provides a much better quality/size ratio along with alpha mask support, so using it for the cache-db could provide two advantages - smaller size and/or better quality. And lossy low-quality compression can still store the alpha channel, which can used when drawing the thumbnails.

I think it should be selected by default in thumbnail cache options, even without ZIP/JPG (although these should be internally supported for old cache-db files).
  • WebP lossy - low quality
  • WebP lossy - medium quality
  • WebP lossy - high quality
  • WebP lossless
  • None

User avatar
Posts: 1999
Joined: Tue Jul 17, 2007 1:17 am
Location: France

Re: Thumbnail cache database: use WebP compression

Post by oops66 » Tue Sep 22, 2015 12:13 am

Enable thumbnail caching
Lossy - High quality (WebP) v (as default)
XnViewMP 0.82 Linux X64 - Ubuntu 16.04 LTS - X64

Post Reply