Displaying 20 results from an estimated 1000 matches similar to: "NHW Codec - new study on 30 images"
2017 Feb 16
0
NHW Project - 2017 timetable
Hello all,
Just a quick message for those interested in the NHW Project.I realize that
I have too little time to spend on the project currently and I feel that
this year will be very important after 6-7 years for its success or not.I
already had some few replies from some companies (and a major one), and
they can not spend some time, spend some engineers on my work because there
is no
2017 Mar 07
0
NHW Codec - some progress
Hello,
I have some progress for the NHW codec.
I recently talked with a researcher that has some interest in the NHW
codec.He has studied several directional wavelet transforms (notably HWD
directional transform), and he came to the conclusion that directional
transforms will bring marginal improvement, not significant in the case of
my compression codec.This also confirms what I have read from
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
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 Dec 11
0
NHW Project - speed measurement 2 - very high compression
Hello,
If it could be of interest, here are new speed measurement for -l13 very
high compression setting.
For x265 (HEVC), I use BPG codec, and this time I use -m 0 setting which
uses the fastest encoding setting of x265.I run the .exe 10x times and I
pick the best scores.
So here are the timings at -l13 very high compression:
Encode time: x265 (BPG -m 0): 80ms NHW: 20ms
Decode time: x265
2018 Dec 10
0
NHW Project - good improvement of very high compression (-l8 to -l13 quality settings)
Hello,
Just a quick message to let you know that I have really improved very high
compression of the NHW Project
from -l8 to -l13 quality settings, and we can still save 2.5KB per .nhw
compressed file.
Actually I am new to very high compression, it is just 3 months that I am
working on it (I put on pause the NHW Project from August 2013 to February
2018 )... And I realize that very high
2019 Jan 03
0
NHW Project - good quality improvement & encoding speed improvement
Hello,
Just a quick message to let you know that I have made good quality
improvements for very high and extreme compression of the NHW Project (-l8
to -l15 quality settings).The NHW Project starts to be really competitive
with x265 (HEVC) at these very high compression ratios.I even find the NHW
Project visually better than x265 (HEVC) for mid and high compression!
I have also improved encoding
2018 Mar 28
0
NHW Project - high compression (-l6 setting and below)
Hello,
I would like to thank very much the Theora channel community for their
support and help!!! And even recently a Theora channel member proposed me
to freely host on his server the NHW Project website, to present the codec
on the embedded processors, MCU forums that he knows well, another member
forked my GitHub repository!!! Really thank you very much!!!
It makes me think that maybe the NHW
2019 Feb 10
0
NHW Project - new -l18 "extreme" compression quality setting
Hello,
I have just added a new -l18 "extreme" compression quality setting to the
NHW Project.I find this quality setting very good and actually better than
x265 (HEVC).
First, I wanted to let you know that compression of the wavelet DC image is
really not efficient at extreme compression, I have the fast ideas to
improve it, and so we can really save 2.5KB per .nhw compressed files in
2018 Jul 14
2
NHW Project - some results
Hello,
Just a quick message to let you know that I get back to NHW Project
currently.
I downloaded 20 images from the Internet with rather good quality (mainly
faces), I compressed them at high compression -l7 setting with the NHW
Project, and on 19 images out of 20, I visually prefer the results of NHW
compared to x265 (HEVC)!!! -I can make available these 20x3=60 512x512
24bit bitmap images
2018 Sep 28
0
NHW Project - seeking for new members
Hello,
Very sorry I made a mistake, I compared this version with an old one, not
with the previous one, and in fact results are the same, there is no
improvement actually...
Else I would like to have your opinion on how to have more visibility,
audience for the NHW Project.I suspect that big companies don't even know
that the NHW Project exists or they didn't test it because it seems too
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
2018 Mar 28
0
NHW Project - high compression (-l6 setting and below)
Hello Ken,
Many thanks for your reply!
Yes, I very need to adapt the NHW codec to any image size.But actually it
is the least interesting part, I don't think that it is that difficult
(compared to creating high compression settings) but it is very boring,
annoying... Really not the part that I prefer... For now, as I am jobless,
my aim is to have "pleasure" with the NHW Project and
2018 Mar 30
0
NHW Project - high compression (-l6 setting and below)
Hello Spork,
> If you want though, when I find some time, I can work on supporting a
better command line parsing.
Yes that would be great as my command line parsing is not good at all.
> Does your codec compile under Linux? If not, that's something I can try
to work on as well.
I never tested my codec under Linux )-:, and so it would be also great to
compile it under Linux.I think
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 Dec 03
0
NHW Project - How to find a sponsor?
Hello,
I am still working on very high compression for the NHW Project, but I find
the current version good, it has a good neatness of image, which I find
visually more pleasant than other codecs that are optimizing for PSNR,
SSIM,... Furthermore the NHW Project is still very fast and royalty-free.
I dedicated this past year to the NHW Project and I could make very good
improvements (like
2018 May 28
0
NHW Project - high compression & community
Hello,
I've found some time to get back to the NHW Project.In fact a Xiph forum
member told me that even if I will start a new job, he hopes that I will
still continue to develop a little the NHW Project, on my spare time.I told
him that I would furthermore spend my spare time on the NHW Project if a
community around the project could emerge... and he told me that certainly
the best way for
2018 Aug 22
0
NHW Project - very high compression settings
Hello,
I think I have nearly validated the -l8 "very high compression" setting, I
have started to work on -l9 setting, and I have just tested these ones
against x265 (HEVC), and on rather good quality images, they are very
competitive, that's not a joke!!! I have tested -l8 quality setting on 30
rather good quality images against x265, and on 20-22 images I prefer the
results of the
2017 May 12
0
NHW Project - some update & call for members
Hello,
These last 2 months I have been in contact with a very impressive and
friendly engineer from Intel who has written an article on my codec and the
4-5 new codecs in general that competes with HEVC.He finally answered me
that as Intel is a founding member of the Alliance for Open Media and
chairs several MPEG WG around HEVC, they won't be able to put extra
resources on the NHW Project.So