File: great_shrike.webp (525 KB, 5562x3708)
I love birds but high res images of them tend to be pretty bloated and not ideal for sharing.
Noticed Webp uploads are allowed here and aren't further compressed, very nice. Nice step up from ancient JPG.
I don't know too much about quality except that high quality SSIM scores are above 0.95 so I'm aiming for 0.96.
'cwebp -sharp_yuv -m 6 -mt -pass 4 -hint photo -size 540000 in.jpg -o out.webp' size=in bytes not KB
https://commons.wikimedia.org/wiki/File:Great_Grey_Shrike_in_Bhigwan_August_2025_by_Tisha_Mukherjee_02.jpg
>>470
It can be if you don't know what settings to use. Bluesky is definitely a terrible implementation of Webp, probably using -m 1 and no multi-pass encode + low quality settings. At that point you might as well just smooth images with a blir filter before encoding them with JPG. When you do all the stuff in my OP it's not unusual to get more than 20-30% generic compression efficiency advantage most Webp tests show over JPG.
Also people often don't take into accoun that Webp was never designed to compete with archival quality (ie SSIM 0.9999). At that point you're wasting so much filesize for small quality improvements that image codecs in general don't compress well at all and JPG looks like a "winner" there.
File: harpy eagle.webp (242 KB, 4327x3326)
The Harpy eagle scares me. It's not just that it's talons exert ~500 PSI, enough to crush monkey skulls, but it has an oldly human shaped face.
https://commons.wikimedia.org/wiki/File:Harpy_Eagle_%287117520549%29.jpg
