Image up/downscaling algorithms?

[junefulcrum]

i may be missing something obvious, but can I not specify which upscaling or downscaling algorithm the Image Converter will use? it unfortunately becomes almost useless to me if i can't batch downscale images in a high quality (by which i mean lanczos or bicubic, rather than nearest neighbor or bilinear)...

[Lynx_TWO]

I ran across this today:

https://github.com/avaneev/avir

As per the site:

"Me, Aleksey Vaneev, is happy to offer you an open source image resizing / scaling library which has reached a production level of quality, and is ready to be incorporated into...