The Gimp plug-in descreen works in the
frequency domain by means of a fourier
decomposition. I think, darktable has means to
do this too, but I don't know how or if the
pixel patches aren't simply too large.
Exactly in commercial print - all dots are at 100% density. They are
smaller or bi
A starting point would be to watch
https://www.youtube.com/watch?v=zzVXK4eAM5E
This is quite old but still very valid . have you seen this??
On 08/31/2018 01:44 PM, ternaryd wrote:
> On Fri, 31 Aug 2018 13:25:31 -0700
> David Vincent-Jones wrote:
>
>> Since the Gimp process is using FFT ...
There are some good on-line tutorials and ... Step #1 read the manual.
On 08/31/2018 01:44 PM, ternaryd wrote:
> On Fri, 31 Aug 2018 13:25:31 -0700
> David Vincent-Jones wrote:
>
>> Since the Gimp process is using FFT ... using
>> the equalizer in dt could provide similar
>> results.
>> Did
On Fri, 31 Aug 2018 13:25:31 -0700
David Vincent-Jones wrote:
> Since the Gimp process is using FFT ... using
> the equalizer in dt could provide similar
> results.
> Did you try that and what was the result?
No, I did not. I guess there is some
understanding of it I'm lacking...
__
The dt equalizer is using Fourier Transform as is the Gimp process
you may need to understand how it works to get a reasonable result
rather than relying on 'pushing-a-button' and expecting results.
On 08/31/2018 01:26 PM, ternaryd wrote:
> On Fri, 31 Aug 2018 15:27:53 -0400
> Michael wrote
On Fri, 31 Aug 2018 15:27:53 -0400
Michael wrote:
> follow the thread?
> https://www.dpreview.com/forums/post/60637838
I hadn't, but did now. There is a second
suggestion with denoise non-local means, which
I also tried unsuccessfully.
I believe that those solutions are for a
different problem:
Since the Gimp process is using FFT ... using the equalizer in dt could
provide similar results.
Did you try that and what was the result?
On 08/31/2018 11:12 AM, Michael wrote:
> it looked as if descreen got rid of pattern noise (or what could be
> interpretted as).
>
> On Fri, Aug 31, 2018 at
follow the thread?
https://www.dpreview.com/forums/post/60637838
--
:-)~MIKE~(-:
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a quick search revealed:
https://www.dpreview.com/forums/post/60633401
On Fri, Aug 31, 2018 at 2:27 PM, ternaryd wrote:
> On Fri, 31 Aug 2018 14:12:58 -0400
> Michael wrote:
>
> > it looked as if descreen got rid of pattern
> > noise (or what could be > interpretted as).
>
> Yes. Can that be
On Fri, 31 Aug 2018 14:12:58 -0400
Michael wrote:
> it looked as if descreen got rid of pattern
> noise (or what could be > interpretted as).
Yes. Can that be removed in darktable?
darktable user mailing list
to unsubsc
On Fri, 31 Aug 2018 11:14:35 -0700
"I. Ivanov" wrote:
> To my best knowledge - it is not possible to
> use Gimp plug-in in darktable.
I didn't expect a Gimp plug-in itself to work
in darktable, but hoped there is something in
darktable allowing me to achieve the same or a
similar effect.
___
Hence, my question: Can the descreen operation
of that Gimp plug-in been done in darktable? A
demonstration of this operation can be seen for
instance on http://www.zoyinc.com/?p=1529
To my best knowledge - it is not possible to use Gimp plug-in in darktable.
I have never seen a plugin in DT
it looked as if descreen got rid of pattern noise (or what could be
interpretted as).
On Fri, Aug 31, 2018 at 2:09 PM, Patrick Shanahan wrote:
> * ternaryd [08-31-18 14:04]:
> > On Fri, 31 Aug 2018 10:16:21 -0400
> > Patrick Shanahan wrote:
> >
> > > > Is there a method in darktable to do unde
* ternaryd [08-31-18 14:04]:
> On Fri, 31 Aug 2018 10:16:21 -0400
> Patrick Shanahan wrote:
>
> > > Is there a method in darktable to do undestructibly what the
> > > descreen plug-in does in Gimp?
> >
> > operations in dt are non-destructive to your original image. period.
>
> Hence, my ques
On Fri, 31 Aug 2018 10:16:21 -0400
Patrick Shanahan wrote:
> > Is there a method in darktable to do
> > undestructibly what the descreen plug-in
> > does in Gimp?
>
> operations in dt are non-destructive to your
> original image. period.
Hence, my question: Can the descreen operation
of that Gi
When using tools like the spot removal or drawn masks (like with the
pencil icon), as far as I know you have to this one by one. Add one,
then click again on the same icon to add another one etc. etc. Is there
a way, perhaps a key combination I missed, to keep on adding them in one
flow? Like i
Incredible :) Yes, this works. Thanks Remco.
Would be nice though to have these kind of functions right where the
rest is, or with a plus and minus sign to choose how the next aplied
mask is going to behave on the first one created.
Jack
Op 31-08-18 om 15:50 schreef Remco Viëtor:
On vend
* ternaryd [08-31-18 09:35]:
> Hi,
>
> Is there a method in darktable to do
> undestructibly what the descreen plug-in does in
> Gimp?
operations in dt are non-destructive to your original image. period.
unless you *overwrite* the original, but that is your doing, not dt.
--
(paka)Patrick Shan
On vendredi 31 août 2018 14:07:58 CEST kneops wrote:
> Am I right in understanding that I can combine one (set of) drawn masks
> with a parametric mask, but that I cannot add or substract one drawn
> mask from another drawn mask?
>
> I'm thinking of the way selections work in other software where
Hi,
Is there a method in darktable to do
undestructibly what the descreen plug-in does in
Gimp?
Thanks,
--
Cris
darktable user mailing list
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Not sure it works in all cases.
But I did do the same thing with exposure, albeit it was not a strong
adjustment (exposure was +0.5 on a gredient). Because I did it via two
modules, and the way the pixel pipe works, there likely is the potential
for data loss and not get a "perfect reversal". In my
Am I right in understanding that I can combine one (set of) drawn masks
with a parametric mask, but that I cannot add or substract one drawn
mask from another drawn mask?
I'm thinking of the way selections work in other software where you can
add or substract a new selection from an already ex
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