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List:       theora
Subject:    [theora] NHW Image codec - subjective quality
From:       Raphael Canut <nhwcodec () gmail ! com>
Date:       2013-09-09 13:20:08
Message-ID: CAKE58qE9R_SNoq9QpPGfrViXR0v6AKw_vr3pfKeULdtT=wkq_Q () mail ! gmail ! com
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Hello,

Yes, that's right, I had the remark that if I say that the NHW codec would
have more neatness/sharpness, this must be also accompanied with objective
measure.But the neatness/sharpness measure is quite complex to define, and
implement.

But at classical visual review step, I would find that the NHW codec would
be less blurred (maybe PSNR would like blur?...) with more
neatness/sharpness, with the normal settings (-l2->-h3 settings).Do someone
agree with this? And also, is visual review a good or sufficient method
for "pointing" the advantage of a codec? Would be really interested in the
opinion of the experts on these channels.

Many thanks again,
Raphael

[Attachment #5 (text/html)]

<div dir="ltr"><div>Hello,</div><div> </div><div>Yes, that&#39;s right, I had the \
remark that if I say that the NHW codec would have more neatness/sharpness, this must \
be also accompanied with objective measure.But the neatness/sharpness measure is \
quite complex to define, and implement.</div> <div> </div><div>But at classical \
visual review step, I would find that the NHW codec would be less blurred (maybe PSNR \
would like blur?...) with more neatness/sharpness, with the normal settings \
(-l2-&gt;-h3 settings).Do someone agree with this? And also, is visual review a good \
or sufficient method for &quot;pointing&quot; the advantage of a codec? Would be \
really interested in the opinion of the experts on these channels.</div> <div> \
</div><div>Many thanks again,</div><div>Raphael</div></div>



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