<div dir="ltr"><div>Hello,</div>
<br>
I know there is no community around NHW, but I would have liked to know
what you would like to see improved in the NHW codec.I know its results
are not perfect for now compared to high-end AV1/VVC codecs for
example, but could be ok giving its extremely fast speed.-However on
high quality images, I notably like its good results because of its
neatness.-<br>
<br>
Regarding things to improve, there is the problem of aliasing, I have
started some quick experiments as I mainly find that aliasing appears in
NHW along "low-contrast edges", but I have also seen some very
impressive results of directional filters like the ones used in CDEF
filter in AV1, because they estimate the "strong edge direction" and
align all the pixels on that "strong edge direction" which could
depixelize/remove aliasing.I have also started to implement a banding
detector (with its main analysis on the 128x128 wavelet DC image) in
order to remove banding, and it's only the beginning but I have
promising results.I have also started to improve the entropy coding
scheme of the wavelet DC part, for now I have a very fast processing
that gives another 1KB saving on that part in average, but I have an
error on some few images, I don't think I contradict the compression and
information theory principles, I think it is more a corner case that I
did not see for now and so that I don't handle, but it takes a lot of
time... I'll also have to better handle the chroma channels and notably
add chroma from luma technique.<br>
<br>
Some people also tell me that the priority now is to adapt NHW to any
image size, but actually this is the boring task for me currently, and I
am a little reluctant for now.<br>
<br>
All that to let you know that I really like more to work on my codec,
and so I would like now to work full-time on it again, but there is
always the big problem of the salary at the end of the month.As the
industry doesn't show interest in NHW, I would like to ask sponsoring
for this project on the Internet.But some people told me that I failed
to create a community around NHW, and with just 27 followers on GitHub
and 8 followers on Twitter (that's very weak), I can not hope more than
10dollars/per month of sponsoring/donation.<br>
<br>
Do you think this solution/sponsoring is possible? Or on the contrary,
NHW will be just a spare time hobby, because there is nothing more to
expect out of it?<br>
<br>
Any help/opinion is very welcome!<br>
<br>
Cheers,<br>
Raphael
</div>