* Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com> [02-08-22 11:28]:
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> Content preview: I managed to have the gradient mask do what I want – I had
> to invert it. I finally managed to get what I needed. Hartelijke groet,
> Hieke
> van Hoogdalem [...]
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> Date: Tue, 08 Feb 2022 17:24:42 +0100
> From: Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com>
> To: Terry Pinfold <terry.pinf...@utas.edu.au>, Remco Viëtor
> <remco.vie...@wanadoo.fr>
> CC: darktable forum <darktable-user@lists.darktable.org>
> Subject: Re: [darktable-user] Mask won't apply
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>
> I managed to have the gradient mask do what I want – I had to invert it. I
> finally managed to get what I needed.
>
>
>
>
>
> Hartelijke groet,
>
> Hieke van Hoogdalem
>
>
>
>
>
> Van: Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com>
> Datum: dinsdag 8 februari 2022 om 13:08
> Aan: Terry Pinfold <terry.pinf...@utas.edu.au>, Remco Viëtor
> <remco.vie...@wanadoo.fr>
> CC: darktable forum <darktable-user@lists.darktable.org>
> Onderwerp: Re: [darktable-user] Mask won't apply
>
>
>
> Tnx. I also did that (new instance, adjust exposure slider) but like I said:
> it effected the whole image.
>
>
>
> 'First master the basics'… well… if the lines are too harsh, getting rid of
> those is part of the basics as far as I'm concerned. Otherwise it doesn't
> look like the masks aren't being mastered at all.
>
>
>
> So yes, I get those basics, but like I said before: I don't get this to be
> applied to my mask. That's why I asked about the blend mode before. I tried
> the feather and blur and so on, but it doesn't work, because it starts wrong
> with everything being applied to the complete image.
>
>
>
> Hartelijke groet,
>
> Hieke van Hoogdalem
>
>
>
>
>
> Van: Terry Pinfold <terry.pinf...@utas.edu.au>
> Datum: dinsdag 8 februari 2022 om 06:51
> Aan: Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com>, Remco Viëtor
> <remco.vie...@wanadoo.fr>
> CC: darktable forum <darktable-user@lists.darktable.org>
> Onderwerp: Re: [darktable-user] Mask won't apply
>
>
>
> Hi Hieke,
>
> with respect I say that you seem confused about working with masks. I
> hope the following explanation may help you.
>
>
>
> I often want to brighten or darken a section of an image, similar to how I
> would have dodged or burned in a traditional film darkroom. To achieve this
> with a digital image I make a new instance of exposure and adjust the
> exposure slider (sometimes I deliberately overdo the adjustment and will
> return to it later). This adjustment moves the whole of the image's exposure,
> but then I use the drawn mask option which looks like a crayon. I then often
> use the add path option to very roughly select the area I want to apply the
> effect to. The transition will be harsh and obvious. To fix this problem I
> then move the feather radius and blurring radius sliders about a third of the
> way to the right (amount may vary between images). This feathering and
> blurring then creates an invisible transition. I return to the exposure
> slider and fine turn the strength of the effect.
>
>
>
> Forget the blend mode options until you have mastered basic masking
> techniques.
>
>
>
> From: Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com>
> Sent: Tuesday, 8 February 2022 7:40 AM
> To: Remco Viëtor <remco.vie...@wanadoo.fr>
> Cc: darktable forum <darktable-user@lists.darktable.org>
> Subject: Re: [darktable-user] Mask won't apply
>
>
>
> The last image that needs a bit of tweaking is this one, because of the 2
> very white stripes in the left bottom. I wanted to make that part a little
> less bright but I couldn't figure out how. The tone equalizer didn't help and
> the filmic module is too hard to understand for me. I copied and pasted both
> the image and the history so you get the context as well, for instance the
> inversion. (See attached file.)
>
> Kind regards,
> Hieke van Hoogdalem
>
>
> Op 07-02-2022 19:09 heeft Hieke van Hoogdalem <hieke.vanhoogda...@gmail.com>
> geschreven:
>
> Hi Remco,
>
> Tnx. Yes I always check the dates of tutorials. This one was 2 years old
> so I already expected some UI items to be different. I mainly followed this
> one because he explains how to apply a mask including the use of the mouse
> Where to click etc. with free forms... I didn't manage to get that right
> before.
>
> Thanks for the tips, I do work with scene referred RGB indeed. "Keep in
> mind that in your case, masking and reducing exposition can lead to strange
> tone transitions at the edges. That's why I suggested tone equaliser or
> filmic adjustments instead of masking." Towing (?) the exposure down gave
> weird results indeed. The tone equalizer was - almost - exactly what I
> needed. You saved this image! Merci mille fois! Je t'embrasse tès fort et je
> te donne un grand bisoux __
>
> There are other images too though wich need a mask, but for several
> different reasons. So I'm still looking for learning to work with masks. I
> have until the end of this week - up until and including Thursday actually -
> for making these changes and entering my pix for a contest.
>
> And yes, I see the yellow part. What about it? __
>
> Cordialement,
> Hieke van Hoogdalem
>
>
> Op 07-02-2022 18:38 heeft Remco Viëtor <remco.vie...@wanadoo.fr>
> geschreven:
>
> On lundi 7 février 2022 18:19:57 CET Hieke van Hoogdalem wrote:
> > Hi there,
> >
> > I'm trying to apply masks. The idea is simple, but I can't get it
> working. I
> > searched for YouTube tutorials, but they don't cover my problem.
> >(...)
> > So here's the situation. I have this image that I had to brighten
> up quite a
> > bit, but now a small part is overexposed. I want to use a mask to
> bring
> > that down. But… when I draw a mask and change the exposure, it's
> being
> > applied to the complete image. (Yes, I did create a new instance in
> the
> > expose module before I started to create the mask.)
> If you are using the scene-referred workflow, you could use the tone
> equaliser
> for this (or perhaps adjust filmic).
>
> As for the mask, did you visualise it ("circle in square" icon next
> to "mask
> refinement) and did it show the area you wanted to mask (yellow) ?
>
> > I found this tutorial that showed something about 'blend mode' and
> telling
> > that 'normal' applies to the complete image. You have to chose
> 'mask'. But
> > when I click on 'blend mode' I get a much larger list without the
> option
> > 'mask'.
> I haven't seen a "mask" option in blendmode ever (that is, the last
> few
> years). I found that I always have to check the date on any kind of
> tutorial,
> as changes are rather fast (not only for darktable) .
> >
> > What can I do to make this work?
> First we have to know what went wrong...
> Keep in mind that in your case, masking and reducing exposition can
> lead to
> strange tone transitions at the edges. That's why I suggested tone
> equaliser
> or filmic adjustments instead of masking.
>
>
>
>
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so basically, your mask was not applied to the area you intended?
--
(paka)Patrick Shanahan Plainfield, Indiana, USA @ptilopteri
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