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Old 1st January 2025, 17:43   #241  |  Link
nhw_pulsar
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Hello,

Very quickly, as usual for those interested in NHW, I have released the v0.3.0-rc45 new version, still fine-tuning the nhw_kernel weights for a better precision.

Yes again this one is quite a slight incremental visual improvement.

More at: https://nhwcodec.blogspot.com/

Cheers,
Raphael
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Old 3rd January 2025, 19:50   #242  |  Link
nhw_pulsar
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Hello,

Very quickly, for those interested in NHW, I have released the v0.3.0-rc46 new version, always fine-tuning the nhw_kernel weights for a better precision and a better visual quality.

I'll still try to improve precision, but I find that this new version has a good balance between neatness and precision.

More at: https://nhwcodec.blogspot.com/

Cheers,
Raphael
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Old 6th January 2025, 20:29   #243  |  Link
nhw_pulsar
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Hello,

Very quickly and sorry for disturbing you, today it is exactly 18 years that I started the NHW codec, and as there is still absolutely no interest in the NHW technology in the industry after all these years and neither for the foreseeable future as AOM is engaged with AV2, MPEG with ECM/NNVC and JPEG with JPEG AI, I have to admit that I start to be quite discouraged now.Some people also start to tell me now to really slow-down my work on NHW and then move on to other more "healthy" thing (regarding my bad health).

I wanted to thank very much the people who followed NHW, sadly I don't know you, yes I know this forum is not an airport, I don't have to announce my departure, but maybe v0.3.0-rc46 was my last version, hope some of you had fun with NHW!

Cheers,
Raphael
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Old 10th January 2025, 17:16   #244  |  Link
nhw_pulsar
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Hello,

Very sorry for disturbing you, I realize I still need to develop (a little) on NHW, it's part of my balance for now...

Very quickly, for those interested, I have released the NHW v0.3.0-rc47 new version, always fine-tuning the nhw_kernel weights for a better precision and a better visual quality.

More at: https://nhwcodec.blogspot.com/

Thank you on this forum (and for your patience).
Cheers,
Raphael
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Old 13th January 2025, 20:30   #245  |  Link
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Hello,

Just to let you know that the last NHW v0.3.0-rc47 version can have a competitive precision now.I had in the past the reproach from some people of the industry that NHW lacked too much of precision, that is to say NHW lacked of fidelity compared to the original image, and was too much warped/deformed.

I find that this is not true anymore, and if I wanted to be controversial, I find that on some of my images, at -q14 compression setting (which is rather high compression), NHW v0.3.0-rc47 would have now more precision than AVIF -s 0 (best quality) and VVC VTM 12.3 (slowest preset), that is to say that NHW resembles more to the original image than these codecs, always for my eyes and again I only tested deeply precision at -q14 setting...

Anyway, yes this won't change industry's opinion on NHW, and I just wanted to rectify that this is absolutely not a problem, NHW is a good hobby for me, and that's the most important!

Cheers,
Raphael
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Old 14th January 2025, 03:51   #246  |  Link
Selur
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Quote:
I find that this is not true anymore, and if I wanted to be controversial, I find that on some of my images, at -q14 compression setting (which is rather high compression), NHW v0.3.0-rc47 would have now more precision than AVIF -s 0 (best quality) and VVC VTM 12.3 (slowest preset), that is to say that NHW resembles more to the original image than these codecs, always for my eyes and again I only tested deeply precision at -q14 setting...
How about adding this with pictures as an example on your page?
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Old 14th January 2025, 11:09   #247  |  Link
nhw_pulsar
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Quote:
Originally Posted by Selur View Post
How about adding this with pictures as an example on your page?
Hello,

Thank you for your advice.

Actually my test images are not very good images, that I don't really want to show... I'll also maybe have to do that precision demo at higher compression, because a friend told me that at -q14 setting with my test images, for him NHW, AVIF and VVC are identical to the original image, he can not see visible differences...

So I'll have to think a little more about making a proper precision demo.

Cheers,
Raphael
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Old 14th January 2025, 18:47   #248  |  Link
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Yeah, do that instead of posting hundreds of improvement claims nobody can comprehend,...
It would be wise to also create a demo which shows the evolution/improvements, especially to those who assume this to be vaporware since it only supports one resolution.
Having a link 'An Image Comparison of NHW and x265' on your page which does not really improve credibility.
¯\_(ツ)_/¯
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Old 15th January 2025, 20:57   #249  |  Link
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Hello,

Very quickly, for those interested, I have released the NHW v0.3.0-rc48 new version, always fine-tuning the nhw_kernel weights for a better precision and a better visual quality.

I am quite tired currently, but as I am satisfied with this new version, maybe I'll release the final v0.3.0 version soon.

More at: https://nhwcodec.blogspot.com/

Cheers,
Raphael
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Old 19th January 2025, 19:30   #250  |  Link
nhw_pulsar
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Hello,

Very quickly, for those interested, I have released the NHW v0.3.0-rc49 new version, always fine-tuning the nhw_kernel weights for a better precision and a better visual quality.

Visual improvements are more and more slight while fine-tuning the nhw_kernel weights, but I still can not figure out why the nhw_kernel weights initialization is so much important.

More at: https://nhwcodec.blogspot.com/

Cheers,
Raphael
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Old 2nd February 2025, 20:08   #251  |  Link
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Hello,

I am making a pause with NHW development, but I have recently seen that there are some voices in the industry (coming from MPEG) saying that there is real and major need for a low-complexity video codec in today's 1080 and 4K world, on par with VVC quality/compression. Where I am a little surprised is that experts say that AV1 and VVC are low-complexity codecs, mostly due to their "relatively" fast decoding... I just wanted to underline that NHW is really very faster to decode, and with a better image neatness and a competitive precision.

So maybe my task in 2025 will be to try to apply and convince those who are interested in low-complexity solution.But yes I stay ultra realistic, the task is so enormous because there is absolutely zero interest in NHW currently in the industry.The big problem is when they say on par with VVC quality, is it visual quality or is it PSNR/SSIM-wise? Yes if it is PSNR/SSIM-wise, it's not even worth thinking about applying.

Cheers,
Raphael
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Old 6th February 2025, 18:10   #252  |  Link
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Hello,

Just a quick message because I don't even know if MPEG will issue a call for evidence for their new video codec, and furthermore I really don't know what is a call for evidence at MPEG. Someone told me that a call for evidence at MPEG is accompanied with a dataset, and for sure the NHW 512x512 size restriction won't pass the dataset, and so my application will be immediately rejected and NHW won't be studied/reviewed.

As it is impossible for me (with my very bad health) to code NHW for any image size, would you think it could be possible now that NHW is competitive, to find people that could be interested in doing that task and creating their own codec based on NHW core technology?

Cheers,
Raphael
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Old 9th February 2025, 15:34   #253  |  Link
nhw_pulsar
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Hello,

Very quickly, for those interested, I have released the NHW v0.3.0-rc50 new version, always fine-tuning the nhw_kernel weights.

This new version seems to have a little more precision and so a better visual quality.

More at: https://nhwcodec.blogspot.com/

Cheers,
Raphael
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