[demetris]

I published some benchmarks recently:

https://op111.net/posts/2025/10/png-and-modern-formats-lossl...

I compare PNG and the four modern formats, AVIF, HEIF, WebP, JPEG XL, on tasks/images that PNG was designed for. (Not on photographs or lossy compression.)

[tasty_freeze]

It seems like the natural categories are (1) photographs of real things, (2) line art, (3) illustrator images, (4) text content (eg, from a scanned document).

Is there a reason you used only synthetic images, ie, nothing from group 1?

[demetris]

Hey, tasty_freeze!

The motivation behind the benchmarks was to understand what are the options today for optimizing the types of image we use PNG for, so I used the same set of images I had used previously in a comparison of PNG optimizers.

The reason the set does not have photographs: PNG is not good at photographs. It was not designed for that type of image.

Even so, the set could do with a bit more variety, so I want to add a few more images.

[enimodas]

Would be nice to also see decompression speed and maybe a photo as a bonus round.

[demetris]

Yeah.

Numbers for decompression speed is one of the two things I want to add.

The other is a few more images, for more variety.