[hajj_3]

Originally Posted by benwaggoner

Maybe a 65% size reduction for natural images, which are JPEG's sweet spot. But for sharp-edged and synthetic content like text, line art, screen shots, noise-free gradients, etcetera, JPEG is quite bad. I've been able to get 95% reductions for Manga-style art using HEIF HEVC versus JPEG. I imagine AV1 would be in the same rough ballpark.

The goal isn't just to replace JPEG, but also PNG and GIF. HEIF+HEVC is a superset of all of JPEG, PNG, and GIF, and offers better efficiency than any of them for all their scenarios, and adds a lot of additional scenarios as well (like real PQ Rec. 2020 style HDR). An HEIF+AV1 would likely have similar potential.

heif requires licensing h265 patents though which can be expensive. Avif will be patent free, so much better to use that.