Displaying 20 results from an estimated 2000 matches similar to: "NHW Project - some results"
2018 Jul 15
3
x265 and NHW comparison images posted to https://nhwcodec.blogspot.com/?
Hello,
Ok, I will post them in a folder on Google Drive and will give the link on
my blog page, -because among other things, on my blog page, I can not
display 2 bitmap 512x512 images side by side-... Hope it is ok!
Cheers,
Raphael
2018-07-15 1:41 GMT+02:00 J.B. Nicholson <jbn at forestfield.org>:
> Raphael Canut wrote:
>
>> I downloaded 20 images from the Internet with
2017 Nov 27
2
NHW Project - speed comparison with x265
Hello,
I am very slowly working on the NHW Project.I recently made a speed
comparison with x265 and wanted to share it with you.
On my processor Intel Core i5-6400, in average the NHW encoder (totally
unoptimized) is x10 times faster to encode than x265 (png decoding time
removed), in average 30ms vs 300ms for a 512x512 24bit color image, and in
average the NHW decoder (totally unoptimized) is
2018 Aug 17
2
NHW Project - new -l8 "very high compression" setting
Hello,
For those interested, I have added a -l8 "very high compression" setting to
the NHW Project.
I have added an experimental processing to remove details and preserve
neatness.I have also now a fast estimation of entropy of wavelet
coefficients and I use it accordingly to the image complexity but it is a
very first version... With these new processings, the entropy coding
schemes
2018 Apr 28
2
quality improvement of -l4, -l5, -l6 high compression settings
Hello Dave,
Thank you very much for your support and your interest.
Actually so few people took a look at the NHW Project, but with this
version the NHW Project is becoming very interesting, it is royalty-free
and very fast furthermore.
Really if you could find time, I would be very interested in any opinion
from the Xiph.org community!
Cheers,
Raphael
2018-04-28 21:40 GMT+02:00 Dave
2018 Apr 28
2
quality improvement of -l4, -l5, -l6 high compression settings
Thank you so much Sir!!!
If you have time, do not hesitate to let us know what you would think of
the NHW Project.Any remark, opinion would be very welcome!
Many thanks again!
Best regards,
Raphael
2018-04-28 23:02 GMT+02:00 Dave Johnson Games <davefilms.us at gmail.com>:
> Cool, I'll check it out.
>
> On Sat, Apr 28, 2018, 3:09 PM Raphael Canut <nhwcodec at gmail.com>
2018 Apr 16
1
NHW Project - quality improvement for -l4,-l5 settings
Hello,
I have improved quality for -l4 and -l5 high compression settings.These
settings are now really better and very competitive, I now prefer them
compared to x265 (HEVC).
Update at: http://nhwcodec.blogspot.com/
I am also working on -l6 quality setting, I can simply increase
quantization for it but I am not totally satisfied with this solution for
now... Looking for more advanced processing
2018 Jul 15
4
x265 and NHW comparison images posted to https://nhwcodec.blogspot.com/?
Hello,
First I have added a link on my demo blog page to Google Drive for the
image comparison folder of NHW and x265 on rather good quality images.But
be sure, as soon as you have sent me a free alternative host, I will upload
there too!
Link (for now) on: http://nhwcodec.blogspot.com/
Do not hesitate to let me know if you would share the opinion that NHW is
globally better than x265 (HEVC) at
2018 Jul 09
4
NHW Project - some update
Hello,
I don't have advanced on the NHW Project this past month, but I have
definitely validated its characteristics and this new version.
The NHW Codec preserves or enhances image neatness and sharpness, which
translates that on good quality images the NHW Codec is globally better
than HEVC, and on degraded (with blur, artifacts) images it is worse than
HEVC because it lacks of precision. I
2018 Jul 10
1
NHW Project - some update
You're welcome!
On Tue, Jul 10, 2018, 4:50 AM Raphael Canut <nhwcodec at gmail.com> wrote:
> Hello Dave,
>
> Thank you very much for your help!
>
> Cheers,
> Raphael
>
> 2018-07-10 9:39 GMT+02:00 Dave Johnson Games <davefilms.us at gmail.com>:
>
>> Let me do some looking.
>>
>> On Mon, Jul 9, 2018, 4:55 PM Raphael Canut <nhwcodec at
2018 Jul 15
3
x265 and NHW comparison images posted to https://nhwcodec.blogspot.com/?
Also, don't forget the option I gave you Ralph, where you can have access
to one of my VPSes. We can create a subdomain for free, but if you want
something like nhw.com, you'd have to register the domain name yourself,
which wouldn't cost too much money.... Then I can help configure it to
point to your page on my VPS. I'll host it all for free. You'll have
your own user
2017 Oct 02
1
NHW Project - AOM AV1 comparison
Hi Silvia,
Thank you very much for your answer! Your opinion is much appreciated.
Your advice is wisdom, but very quickly to rectify or precise my situation,
I am finishing a 2-year job contract and there will maybe be a "vacation"
period before the next contract (if I find one), so I would like to invest
this time for the NHW Project, but that's right that image/video
compression,
2017 Aug 25
4
NHW Project - news with Xiph.org
Hello,
These last 2 months, I have talked again with Monty Montgomery about the
NHW Project and he told me that Xiph.org would like to encourage the NHW
Project development.That's just great!
I'll see what Monty will do on his side (and when he has time), but he also
told me that the NHW codec has merits but there must be an effort to
demonstrate them.
The advantages, merits of the NHW
2018 Mar 10
2
NHW Project - lower quality settings
Hi David!
Many thanks for your very encouraging and kind feedback!!! (Hope you don't
mind that I made your post public on the Theora channel).
I try to be the more sincere as I can in my posts.Some people suggested me
to make demo pages to explain how the codec works step by step, and I
realize that it would be good, because certainly it will show that the NHW
codec is not that complex and
2018 Aug 04
0
NHW Project - Image comparison
Hello,
Could some of you take a look at the image comparison between the NHW
Project and x265 (HEVC) at high compression, available here:
http://nhwcodec.blogspot.com/ .
I would be very very interested in your opinion, and it would help me to
perfect the NHW Project.For me the NHW Project has more neatness, and x265
has more precision.
Else, I was a little lazy these past months, as I
2018 May 23
0
NHW Project - more test with x265 (HEVC) codec
Hello,
I don't have worked on the NHW Project this past week (I also have to work
on an other project) but I found time today to make an "extensive" testing
of x265 (HEVC) and the NHW codec at high compression (-l7 setting).
That's right that x265 is a very good codec! Really impressive.The NHW
Project is not as good, it can only compete with x265 (HEVC) on quite high
quality
2015 Jan 18
2
NHW Image codec
Hello,
Ok, and that's too many work to review a source code.In my codec, I have 3
compression schemes, I think 2 are not patented, but the third... I don't
know.For the rest, I think my codec is patent-free (I don't use
SPIHT,EZW,zerotree methods), even the wavelet transform is new and don't
use the lifting scheme nor the convolution product.
Else, if you found time to review the
2016 Mar 24
1
NHW codec - progress 2
Hello,
Just a quick message to correct what I have said in my previous post.It
finally seems not that easy to code small wavelet coefficients to have a
good precision, and SPIHT is certainly a very good algorithm for that, -and
I know there are SPIHT experts that can make very good SPIHT-based
codecs-.I have chosen a new and different approach, the multistage residual
coding, so I will try to
2018 May 30
0
NHW Project - improvement of -l7 quality setting - more neatness
Hello,
Just a word to let you know that I have improved -l7 high compression
quality setting, thanks to a new processing and I have also corrected an
error in the residual coding.Now it has more neatness/definition.Files size
is also a little smaller (and please keep in mind that the entropy coding
schemes are not optimal for now, so we can save 1.5Ko-2Ko per .nhw file).
Actually I find -l7
2017 Nov 30
0
Fwd: NHW Project - speed comparison with x265
---------- Forwarded message ----------
From: Raphael Canut <nhwcodec at gmail.com>
Date: 2017-11-30 14:22 GMT+01:00
Subject: Re: [theora] NHW Project - speed comparison with x265
To: fboehm <fboehm at aon.at>
Hi Franz,
Many thanks for your answer!!!
> I appreciate your enthusiastic work on such a complex project like
writing a video codec
Yes, for now the NHW codec is more an
2021 Dec 02
1
NHW Project development
Raphael,
Some 15 years ago I implemented limited functionality Theora in our cameras FPGA (it took me 6 month of hard labor), and then gave up - it is a very crowded space and it is difficult to compete with more advanced codecs. And for our other work we anyway need almost raw image data, so we are using JPEG-based JP4 format (https://community.elphel.com/jp4) that we originally developed for