undefined | Better HN

0 pointslifthrasiir2y ago0 comments

I mean, JPEG XL is designed as an all-encompassing file format that also subsumes RAW and DNG. On the other hand, DNG 1.7.0.0 added JPEG XL as one of compression options back in 2022 (!), which might be what Samsung is actually using.

0 comments

3 comments · 1 top-level

1122332y ago· 2 in thread

Where can I read more about JPEG XL subsumming of raw? As far as I understand, you cannot specify differen colorspace for different subsets of pixels?

lifthrasiirOP2y ago

That is done by a custom ICC profile. JPEG XL's own colorspace support is more like a shorthand for frequent presets.

1122332y ago

how can custom ICC profile encode information about bayer filter layout, dark frame or dead/phase photosites?

1 more reply

j / k navigate · click thread line to collapse