←back to thread

A new PNG spec

(www.programmax.net)
615 points bluedel | 2 comments | 24 Jun 25 13:01 UTC | HN request time: 0s | source
Show context
poisonborz ◴[25 Jun 25 10:11 UTC] No.44375523[source]▶
Not backwards compatible. We just add it to that nice cupboard "great advanced image formats we will forget about".

Society doesn't need a new image format. I'd wager to say not any new multimedia format. Big corporate entites do, and have churning them out at a steady pace.

Look at poor webp - a format pushed by the largest industry players - and the abysmal everyday use it gets, and the hate it generates.

replies(10): >>44375537 #>>44375557 #>>44375998 #>>44376442 #>>44376512 #>>44376957 #>>44376999 #>>44377083 #>>44377151 #>>44380128 #
Retr0id ◴[25 Jun 25 13:14 UTC] No.44376957[source]▶
Which aspects are not backwards compatible?

You'll never be able to faithfully represent an HDR image on a non-HDR system, but you'll still see an image.

replies(1): >>44386174 #
1. account42 ◴[26 Jun 25 11:06 UTC] No.44386174[source]▶
The problem is when "HDR" images that would perfectly fit into the sRGB color space are not rendered correctly on non-HDR systems. This PNGv2 fails that which means it isn't really any more useful and one of the existing (and much better) HDR-supporting formats like JPEG-XL or the video codec based ones pushed by the big guys.
replies(1): >>44386932 #
2. Retr0id ◴[26 Jun 25 12:51 UTC] No.44386932[source]▶
If your image fits in sRGB colour space then why not just use sRGB?