OpenJPH v0.10 JPEG2000 Library Adds AVX-512 Support

[phoronix]

Phoronix: OpenJPH v0.10 JPEG2000 Library Adds AVX-512 Support

OpenJPH as the open-source library implementing JPEG2000 Part-15 (JPH / HTJ2K) support is out with a big feature release...

https://www.phoronix.com/news/OpenJPH-0.10-Released

[coder]

Out of curiosity, who's using JPEG2000 and for what?

Up until AVIF came along, it still seemed interesting for lossy compression. However, I'm no longer so sure its use can be justified.

[Archprogrammer]

From a technical perspective - wasn't it until JPEG XL came along? AVIF needs workarounds just to handle very large images and has much lower limits for things like number of channels and bit depth. (source: https://cloudinary.com/blog/time_for..._dethrone_jpeg )

[bug77]

When the "JPEG 2000" name was coined, it was pointing towards the future. Today, it's pointing towards a quarter of a century ago, still looking for adoption

[scineram]

What recent Intel processor are you talking about?

[TheLexMachine]

Out of curiosity, who's using JPEG2000 and for what?

It's used in digital imaging/digital video applications, but only in niche uses like medical and archival imaging and digital cinema. Some security video systems use it. Beyond that, it's non-existent in the intended or applicable markets of use. OpenJPH is a high-throughput JPEG2K encoder/decoder that has video applications and it's intended to broaden the use of JPEG2K in markets where it hasn't done well or been blunted by other formats due to high computing requirements associated with the format.

[coder]

When the "JPEG 2000" name was coined, it was pointing towards the future. Today, it's pointing towards a quarter of a century ago, still looking for adoption

Patents are a bitch. It got submarined, IIRC.

[cl333r]

Out of curiosity, who's using JPEG2000 and for what?

My phone with (shitty) AI and whatnot saves photos to JPG by default. It seems defaults are decided upon by grandads. I hope the world moves to webp/avif/jxl faster, it looks like a IE6 story.

[coder]

My phone with (shitty) AI and whatnot saves photos to JPG by default.

JPEG2000 is fundamentally different than what you're talking about (JPEG '92). At the most basic level, 2k uses wavelets, while the older one uses 8x8 DCTs.

[bug77]

My phone with (shitty) AI and whatnot saves photos to JPG by default. It seems defaults are decided upon by grandads. I hope the world moves to webp/avif/jxl faster, it looks like a IE6 story.

JPEG2000 is fundamentally different than what you're talking about (JPEG '92). At the most basic level, 2k uses wavelets, while the older one uses 8x8 DCTs.

I was gonna say, JPEG is nothing like IE6. At its time, it was even described as "alien tech from the future, something you'd find in the Area 51 wreckage". It was that good. That's why it's so widespread and hard to displace now.
For a while I was dying to see wavelets in action (back then I would re-encode images to save disk space), I don't really care about that anymore.