boxerab

"lay at the beach"

You keep using that word. I do not think it means what you think it means.

For JPEG, if image is encoded using resolution progression, then decoder can not decode using quality progression (where image quality improves with each new piece of the image) and vice versa. With JPEG 2000, the decoder can decide which progression it wishes to use at decode time - by resolution, by quality, by component, or by spatial region.

The issue you are facing with OpenJPEG has nothing to do with PHR, (which isn't actually "personal health information"), but the fact that the library doesn't decode truncated images. The standard is designed for best-effort decoding when there are corrupt or missing packets, but the implementation errors out when it detects this.

1.18 code freeze is upon us, it won't be long :)

Steinhaus, Ulam and many other mathematicians in the Lviv school were Jewish, and had to flee or go into hiding to survive the German occupation. Interesting that there is no mention of this in the article.

Beware: my anti-virus warned that this site is infected with malware.

yes, the sense of entitlement of some people is very surprising.

What would be the use case for GPU encoding? Aren't the CPU encoders fast enough on 8-core or higher ?

Yes, I found that quite strange too. I would not consider him actually returned until he apologizes for his support for the death sentence on Rushdie.

By the way, they also recently changed the license on ZSTD compression codec to dual BSD / GPL v2, after complaints by user community.

Thanks, very interesting take on the matter. Would you mind explaining "...it has to code everything in reverse. The latter especially is a technical showstopper. " ?

A previous post about this on HN:

https://news.ycombinator.com/item?id=14583691

Link provides steps for people to submit prior art to USPTO for this patent application (patent is not granted yet)

world's shortest math joke:

For any epsilon less than zero .....

Yes. They have applied for a patent on ANS and video compression - ANS is one of the biggest advances in lossless encoding in the last 10 years. The inventor wants to keep it freely available, has helped Google for three years to incorporate ANS in AV1 - their reward is to try to patent his invention. More details here:

https://news.ycombinator.com/item?id=14583691

It's just human nature, I guess.

Thanks for sharing this!

shameless plug for my JPEG 2000 codec: https://github.com/GrokImageCompression/grok . Performance currently around 1/3 Kakadu

Any time you watch a movie at the cinema, JPEG 2000 is in use, decoding the film.

apparently, times are changing: http://wccftech.com/amd-vega-mi-25-instinct-gpu-accelerator/

Regarding the effective monopoly on high end, this will change next month with release of Vega card.

Let's compare notes end of next year :) I think things will be quite different by then.

Puff piece. Yes, Nvidia dominates at the moment, but as many have said, this could easily change with a resurgent AMD. They have made all the right moves, IMHO, since Lisa Su took over:

0. Finally paying attention to software part of equation : hardware for compute has always been very good

1. drivers are now excellent

2. whole line of GCN devices (since 2012) are supported and still optimized, unlike notorious Nvidia nerfing of older cards

3. Has x86 license - if Zen is a success, can build high-bandwidth fabric between CPU and GPU, unmatchable by nVidia except on exotic Power8 arch.

4. new project focusing on HPC on Linux

5. they keep pushing OpenCL, which will win over Nvidia-only CUDA

6. New tools to semi-automatically port CUDA code to run on their hardware.

Well, here's hoping AMD gives them a run for their money in 2016 </fanboy> 6.

Yes, agree. Also, SDKs are quite expensive - while GPU vendors give theirs away for free. This might be one reason for relatively low adoption vs GPU.

amen!

:) I've only been deeply involved with compute for the past two years, so I am still an optimist. I think AMD pretty much has no choice but to get it right this time: they need server and HPC dough to stay afloat.

You should check out ROCm

http://hothardware.com/news/amd-rocm-13-adds-support-for-pol...

They are revamping their entire linux stack for HPC, heterogenous compute.

Very very happy to finally see AMD GPUs in cloud.

Once rockets go up, who cares where they come down. It's not my department, says Wernher von Braun

If you're on windows, GitExtensions is pretty awesome. (open source too). I made a donation to the author because that client saved me from a team mutiny after I introduced git on the command line.

Thanks, Trevor, that makes a lot of sense.

With the rise of streaming video, there are new players entering the broadcast market, so there is an opportunity to sell an inexpensive compression/decompression system for integration into these new systems. The time to develop a JPEG 2000 codec from scratch is quite large, so decreasing time to market is another part of my value proposition.

On the server side, it looks like my focus should be on total cost.

On the client side, for example digital cinema post-production, a user typically has only a single box, so speed is important in this case.

Thanks again, I really appreciate your feedback.

Aaron