hi,
On Mon, Oct 24, 2016 at 9:46 PM, Alex wrote:
> He complains about magenta shadows.
[..]
> The issue is obvious in these images:
> http://i.imgur.com/0sixStb.jpg
> http://i.imgur.com/12eQb4y.jpg
yes, those images do show the mean shift when clamping to 0 before
denoising. if you have a raw li
Le lundi 24 octobre 2016 à 23:04 +0300, Alex a écrit :
> I see this as chroma noise. Same issue as in the images I've linked,
> just a lot less obvious.
>
> I'm talking about https://www.sendspace.com/file/uem3t6 here.
Hey please!
I have already acknowledged and said that in the original mes
I see this as chroma noise. Same issue as in the images I've linked, just a
lot less obvious.
I'm talking about https://www.sendspace.com/file/uem3t6 here.
On Mon, Oct 24, 2016 at 11:00 PM, Pascal Obry wrote:
> Le lundi 24 octobre 2016 à 22:46 +0300, Alex a écrit :
> > He complains about magent
Le lundi 24 octobre 2016 à 22:46 +0300, Alex a écrit :
> He complains about magenta shadows.
Yes, but then:
<<<
The one you generated shows the surface of car body as covered with a
little scratches (zoom to 1:1 and compare).
>>>
Those are luma noise. And I was responding to this (after respond
He complains about magenta shadows.
> Black should remain black - if not 100% black, then as
> shade of grey, but surely without magenta "sand" on it.
The issue is obvious in these images:
http://i.imgur.com/0sixStb.jpg
http://i.imgur.com/12eQb4y.jpg
Of course, they were not rendered with darkta
Le lundi 24 octobre 2016 à 20:29 +0300, Alex a écrit :
> > That's luminance noise and certainly not a problem to me.
>
> To me, it looks like chroma noise, but the defect is not really
> obvious in this example.
No please reread the exchange. At first there was chroma noise (I've
explained how to
On Mon, Oct 24, 2016 at 08:29:38PM +0300, Alex wrote:
> Zbigniew,
>
> Can you prepare a CR2 similar to this one? http://i.imgur.com/0sixStb.jpg
Do you mean: to shoot something dark, on high ISO value - to get grainy
result - and in similar lighting conditions?
--
regards,
Zbigniew
_
Zbigniew,
Can you prepare a CR2 similar to this one? http://i.imgur.com/0sixStb.jpg
It can be the original CR2 from the same example, if you can find it
or get it from OP. Or a similar scene that shows the same defect.
I've got a theory about a possible fix, so I'd like to look into it.
Basical
Zbigniew,
> Anyway, I'm aware it's rather a matter of personal taste, but I'm
> convinced
> that after you examine both pictures again - and even more closely -
> you'll
> agree that this Silkypix-made is a little bit better. The one you
> generated
> shows the surface of car body as covered with
JLC> What I see:
JLC> 1 - The exposure level is not the same on both the pictures - there is
JLC> about 1 EV difference
JLC> 2 - The silkypix.jpg is noise processed while the darktable.jpg is not.
Most probably silkypix is denoising - I'm not opposed to that - what I was
trying to explain is that
J-L.C.> Is there something wrong as I don't SEE anything wrong
P.O.> Same here. I don't see anything wrong.
Encouraged by your answers just installed current version of Darktable - and
what I can say, is... guys, I honestly can't believe you didn't see this:
https://www.sendspace.com/file/uem3t
2016-10-24 10:44 GMT+02:00 Jean-Luc Coulon (f5ibh) :
> I've downloaded your picture.
> I've used the colour picker on the black car at the upper left.
> I used the "zone" picker and drawn a square on the black car.
>
> Without pushing the exposure but with the base curve applied, I get:
> 80, 80, 7
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