Re: [darktable-user] GPU advice 2GB or 4GB RAM.

[Robert William Hutton]

More memory is good because it allows you to process images through opencl without tiling them, 
which is a lot faster.  Of course this depends on the resolution of the images you need to process, 
but I'd always try to get the most video ram possible.


I think you can do darktable -d opencl to see if your images are currently 
being tiled.

Regards,

Rob


On 18/04/18 11:10, Frieder wrote:

Hallo,
I need to buy a new graphics adapter mostly for darktable and open CL.
I'm thinking about a Radeon RX 560 card, which is offered with 2 or 4
GB Video-RAM.
Currnently I'm using a R7 card with 2MB wich seems fine memory wise,
but has no more open-cl-driver support with later distributions.

Has somebody experience that 4GB GPU RAM is/can be an advantage over
2GB RAM? Or is it just waste of money and current?
Thanks
F.

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Re: [darktable-user] Darktable on Windows

[Robert William Hutton]

Hi André,

I'm in a very similar situation to what you describe: I have an AMD R9 
280 with an i5-4690 CPU @ 3.50GHz, and am running Ubuntu 17.10 as my 
daily OS.


I have stuffed around with the new AMDGPU-PRO and open source 
equivalents to try to get opencl under modern Ubuntu, but although 
support for my card is supposedly coming "eventually" I've stopped 
holding my breath.


The situation I've ended up with is a triple-boot system with:

* Ubuntu 17.10
* Ubuntu 15.10 (last ubuntu version with fglrx drivers)
* Windows 10 (almost exclusively for the one game I play)

I can report that dt 2.4.1 builds just fine on Ubuntu 15.10 and runs 
accelerated with opencl.  I can also report that dt 2.4.1 runs fine on 
Windows 10 accelerated with opencl.


But in reality I edit most of my files on Ubuntu 17.10 anyway and just 
live with the lack of opencl.


If you'd like to try the Ubuntu 15.10 route, I wrote some instructions 
on building dt here, which I /think/ should still work:


https://redmine.darktable.org/projects/darktable/wiki/Building_darktable_22#Ubuntu-1510

HTH,

Rob

On 20/02/18 05:12, André Felipe Carvalho wrote:

Hello dt users,

I don't use Windows for more than 5 years and used to be very happy with 
Linux (Ubuntu, in my case). Until Ubuntu 14.04 or 15.10 I was, at least. 
In that time, I could use the AMD HD 7730M 2gb GPU of my Dell Inspiron 
7520 Core I7 notebook, 8gb RAM.


When dt started to use GTK 3.0, I had to upgrade to Ubuntu 16.04, in 
order to be able to compile the package.
With Ubuntu 16.04, I lost the graphics card proprietary driver. No more 
AmdGPU, no more Opencl, and my computer is like a snail nowadays... Even 
with fresh installation of Ubuntu 16.04.


My options are:

Buy a new Laptop (maybe a Gamer machine with Geforce 1050) for a lot of 
cash,


or.

Say goodbye to Linux and go back to Windows, since AMD still supports my 
graphics card (last update february/2018) and dt now runs on Windows.


My questions are:
1) Is dt for windows stable, right now?

2) What are your opinion about the above scenario?

Thank you in advance!
--
André Felipe


 
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Re: [darktable-user] Install on MAC OS

[Robert William Hutton]

On 14/11/17 11:56, Paul Deverson wrote:
This shouldn’t be complicated, Bob. I have a Mac and I just downloaded the .dmg file and installed 
it in the usual way.


Hi Bob,

The DMG is here:

https://www.darktable.org/install/#osx

Regarding whether it's compatible with OS X 12.13, that page says:

"This bundle supports macOS versions starting with 10.7 (Lion) running on 64 bit 
Intel architecture."

However, this is Free Software (FOSS), it's not like we have a professional testing team who get 
paid to test every OS under the sun.  Have you tried it?


-R

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Re: [darktable-user] Sharpening after resize

[Robert William Hutton]

On 14/11/17 12:22, darkta...@911networks.com wrote:

What are you doing/using for sharpening after export? My export sizes are 
around 900px jpegs for
web with a quality of 70% for my 20Mpx and 24Mpx cameras.


Isn't this what export styles are for?

https://www.darktable.org/usermanual/ch02s03s12.html.php#d0e3405

Regards,

Rob

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Re: [darktable-user] finding out what is failing

[Robert William Hutton]

On 13/11/17 12:31, Michael wrote:
I ran the ram test a couple of days ago no problems reported. That it was the power supply was 
the first thing I thought of but then I wondered why it would only happen when running darktable. 
How would I check that? What are the proper levels?


At boot, you have to press some kind of button to get into your BIOS or EFI menu.  Depending on 
computer brand it might be ESC, F1, F2, F12 or something like that.  If you're lucky it'll tell you 
what button to press when you boot your computer, and it should be listed in your motherboard 
manual.  Then poke around in the menu until you find the right "status" area or similar where it 
lists the power supply voltages.  In general, it'll list what voltage it expects, and then the 
actual voltage it's getting, something like:


12V: 12.02
5V: 4.96
3.3V: 3.24

You just have to compare, and make sure they're not too far off.  I just did a google and came up 
with this:


https://www.lifewire.com/power-supply-voltage-tolerances-2624583

Voltage RailTolerance  Minimum Voltage  Maximum Voltage
+3.3VDC ± 5%   +3.135 VDC   +3.465 VDC
+5VDC   ± 5%   +4.750 VDC   +5.250 VDC
+5VSB   ± 5%   +4.750 VDC   +5.250 VDC
-5VDC (if used) ± 10%  -4.500 VDC   -5.500 VDC
+12VDC  ± 5%   +11.400 VDC  +12.600 VDC
-12VDC  ± 10%  -10.800 VDC  -13.200 VDC

Regards,

Rob


On Sun, Nov 12, 2017 at 8:23 PM, Robert William Hutton <r...@helms-deep.net 
<mailto:r...@helms-deep.net>> wrote:


On 13/11/17 12:11, Michael wrote:

Hello ladies and gentleman. Well darktable seems to be causing my 
system to reboot and on a
rare occasion to crash. I think it is the video card (it only reboots 
when I am running
darktable and


If you suspect the video card, try disabling OpenCL processing:

* Darktable Preferences (cog icon, top right of lighttable)
* core options tab -> activate OpenCL support (untick this)

But sadly it could be caused by a myriad of things, like bad RAM, bad 
cooling, bad power supply,
bad caps on the motherboard, etc. etc.  You could do a RAM test using a 
live CD, and check the
BIOS/UEFI for voltage levels coming from your power supply.  The other 
things are harder to
narrow down.

Regards,

Rob

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Re: [darktable-user] Re: The new look......

[Robert William Hutton]

On 06/11/17 10:30, Robert William Hutton wrote:

On 06/11/17 09:49, Michael wrote:

I installed from the PPA via apt. How do you reenable the PPA?


OK, so I assume you're on Ubuntu, as you don't say.


Ah, you say you're on Linux Mint, so xenial (rather than artful) is the release 
you want.

I just installed Linux Mint and darktable from the ppa in a VirtualBox VM and 
it worked fine.

-R


GUI way:
  * open Software & Services
  * click the Other Software tab
  * select the darktable PPA from the list, click Edit...
  * ensure the Distribution: field matches the distribution you're running (e.g. artful for 17.10) 
and click OK

  * ensure that the checkbox is checked for the darktable ppa
  * click close, reload the sources
  * open Software Updater, and install the updates

CLI way:
  * sudo pico /etc/apt/sources.list.d/pmjdebruijn-ubuntu-darktable-release-*
  * remove the # from the beginning of the first line (the one that starts with deb, not deb-src), 
and ensure that the distro name matches at the end of the line, something like: deb 
http://ppa.launchpad.net/pmjdebruijn/darktable-release/ubuntu artful main

  * sudo apt update && sudo apt full-upgrade

-R

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Re: [darktable-user] Re: The new look......

[Robert William Hutton]

On 06/11/17 10:23, Michael wrote:
The distro I run is Mint and I installed via a PPA. I would love to do a build-from-scratch but 
apparently I don't know what I'm doing:) The darktable page says:


[snip]

For a more complete set of instructions for different distributions have a look at our Wiki 
.


Indeed, redmine appears to be completely down right now.  Bummer.

In the meantime, try:

https://web.archive.org/web/20171021122919/http://redmine.darktable.org/projects/darktable/wiki/Building_darktable_22

I wrote those instructions, and I see that I don't have Linux Mint on there (though it's based on 
Ubuntu 16.04 anyway, so those instructions should work).  Guess I'll add it if/when redmine comes 
back.  The devs are aware that it's down.


-R

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Re: [darktable-user] Re: The new look......

[Robert William Hutton]

On 06/11/17 09:49, Michael wrote:

I installed from the PPA via apt. How do you reenable the PPA?


OK, so I assume you're on Ubuntu, as you don't say.

GUI way:
 * open Software & Services
 * click the Other Software tab
 * select the darktable PPA from the list, click Edit...
 * ensure the Distribution: field matches the distribution you're running (e.g. artful for 17.10) 
and click OK

 * ensure that the checkbox is checked for the darktable ppa
 * click close, reload the sources
 * open Software Updater, and install the updates

CLI way:
 * sudo pico /etc/apt/sources.list.d/pmjdebruijn-ubuntu-darktable-release-*
 * remove the # from the beginning of the first line (the one that starts with deb, not deb-src), 
and ensure that the distro name matches at the end of the line, something like: deb 
http://ppa.launchpad.net/pmjdebruijn/darktable-release/ubuntu artful main

 * sudo apt update && sudo apt full-upgrade

-R

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Re: [darktable-user] Re: The new look......

[Robert William Hutton]

Those symptoms occur when GTK3 has been updated without darktable being updated to match.  The red 
areas indicate that there's a problem with the layout, so CSS might be involved, but I more often 
see this when I update the OS from one release to the next (say, Ubuntu 17.04 to Ubuntu 17.10) 
without rebuilding darktable.


You say "My system updated over 400 packages this morning."  Could it be that GTK was one of those 
packages?


What distro are you running?  How did you install darktable?

If you installed from the PPA, it's likely that it was disabled during the upgrade, and that you're 
running the darktable version from the previous release.  Or if you build from source, you should do 
a complete rebuild.


-R


On 06/11/17 06:38, Michael wrote:
I figured dt was updated this morning. Can someone tell me how to get it back to the way it was 
istead of the way it is now?


On Sun, Nov 5, 2017 at 2:34 PM, Patrick Shanahan > wrote:

* Michael > [11-05-17 14:28]:
 > I was actually alive in the 80's. Comodore64 was my first computer. No...
 > we had a timex before that.
 > Anyways: this is what my screen looks like now:
 > [image: Inline image 1]
 > My system updated over 400 packages this morning. I cant give a sample of
 > the previous set-up.
 >
 > On Sun, Nov 5, 2017 at 2:18 PM, Patrick Shanahan > wrote:
 >
 > > * Michael > [11-05-17 
14:17]:
 > > > this has the look of something from the eighties! I feel like you are
 > > going
 > > > to turn people off from even trying it. What happened to the menu on 
the
 > > > left?
 > > >
 > > > On Sun, Nov 5, 2017 at 2:09 PM, Michael > wrote:
 > > >
 > > > > I do not like it. It is too blocky. It is too colorful. How do I go
 > > back
 > > > > to the previous version? This one makes me feel stupid.
 > > > >
 > > > > --
 > > > > :-)~MIKE~(-:
 > > > >
 > > >
 > > >
 > > >
 > > > --
 > > > :-)~MIKE~(-:
 > > >
 > > > 
 > > 
 > > > darktable user mailing list
 > > > to unsubscribe send a mail to darktable-user+unsubscribe@
 > > lists.darktable.org 
 > >
 > > it is still there, did you loose it?  how did you accomplish that?  
what
 > > people do you mean?  were you actually here in the 80's?
 > >
 > > --
 > > (paka)Patrick Shanahan       Plainfield, Indiana, USA          
@ptilopteri
 > > http://en.opensuse.org    openSUSE Community Member    
facebook/ptilopteri
 > > Registered Linux User #207535                    @ 
http://linuxcounter.net
 > > Photos: http://wahoo.no-ip.org/piwigo               paka @ IRCnet 
freenode
 > > 
 > > 
 > > darktable user mailing list
 > > to unsubscribe send a mail to darktable-user+unsubscribe@
 > > lists.darktable.org 
 > >
 > >
 >
 >
 > --
 > :-)~MIKE~(-:
 >
 > 

 > darktable user mailing list
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so why are you blaming dt?

--
(paka)Patrick Shanahan       Plainfield, Indiana, USA          @ptilopteri
http://en.opensuse.org    openSUSE Community Member    facebook/ptilopteri
Registered Linux User #207535                    @ http://linuxcounter.net
Photos: http://wahoo.no-ip.org/piwigo               paka @ IRCnet freenode

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Re: Aw: Re: [darktable-user] Exported JPG vs. Camera JPG

[Robert William Hutton]

On 23/10/17 18:10, Thomas Werzmirzowsky wrote:

Gesendet: Montag, 23. Oktober 2017 um 07:47 Uhr
Von: "Robert William Hutton" <r...@helms-deep.net>
I found creating my own matrix from a Wolf Faust target worked really well,


Tim Rolph also mentioned the Wolf Faust target but I have to admit that looking at the 
website I don't know what to order. What "Order #" would be the right one?


You want the "C1" from this page:

http://www.targets.coloraid.de/

Note how it says "camera (not scanners)" in the "Use with" column.


but ultimately decided that having the additional dependency of having that 
profile present if I wanted
to re-edit the images at a later date wasn't worth it, and I do much as you do: 
use the standard
profile. Sometimes also setting the gamut clipping to linear rec2020 is a good 
option as well.


I don't really get that. Don't you have to create the profile just once and 
then it's done? As the color mapping should contain all colours it shouldn't 
change from photo shot to phot phot, should it? Or would it be needed to create 
a new matrix for every photo shot just like doing a gray card shot for the 
white balance?


The process is to create an icc file which then goes in your ~/.config/darktable/color/in directory. 
 So you can back up your images directory, which gives you your raw and xmp files (everything you 
need to regenerate your edits), but the xmp files now depend on a file that lives in your home 
directory.


I'm sure you could work around this by putting the icc file with your images and symlinking to it or 
something, but I decided it wasn't something I wanted to worry about.



I can probably dig up the 60D profile if you'd like to try it.


It would be great if you could lookup the profile. I'd like to give it a try.


https://www.dropbox.com/s/lupf36wt05m3c5x/Canon_EOS_60D_Standard.icc?dl=0

Regards,

Rob

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Re: [darktable-user] Exported JPG vs. Camera JPG

[Robert William Hutton]

On 22/10/17 20:27, Thomas Werzmirzowsky wrote:

I shot a portrait with my Canon EOS 60D and noticed that the JPG from
the Canon in portrait image mode looks significantly better than the one
exported from Darktable. Especially the blue color looks much more
natural in the camera JPG.


I have a 60D and a 5d mark iii.  I can vouch for the fact that the "enhanced colour matrix" that is 
the default does a poor job with the 60D raws (generally much better with the 5d3 raws), mostly with 
the blues.  I found creating my own matrix from a Wolf Faust target worked really well, but 
ultimately decided that having the additional dependency of having that profile present if I wanted 
to re-edit the images at a later date wasn't worth it, and I do much as you do: use the standard 
profile.  Sometimes also setting the gamut clipping to linear rec2020 is a good option as well.


I can probably dig up the 60D profile if you'd like to try it.

Regards,

Rob

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Re: Re : [darktable-user] OpenCL in Ubuntu 17.10 with NVidia and Wayland?

[Robert William Hutton]

I run darktable (from git) on Ubuntu 17.10 (vanilla GNOME shell) and have done for some weeks.  On 
my machine with AMD hardware I run the wayland session, and on my machines with nvidia hardware, I 
run the xorg session.  It certainly works under both, though its stability isn't necessarily perfect 
(not sure if that's because I'm running the latest git version, or because I'm using a lot of masks, 
of if it's ubuntu 17.10 so YMMV).


The way 17.10 works is that when you log in at the GDM greeter, there's a little cog button you can 
click to choose which session to log in to.  If you have Wayland-compatible hardware, you will see 
two options for each installed session(xorg, and Wayland).  If you don't (i.e. if you have nvidia 
hardware) you just see one option for each installed session.


Regards,

Rob


On 21/10/17 08:41, Matt Eastwood (Matthias) wrote:
Thanks, Pascal! Yeah, after more reading, that's what I found as well. When I have a few hours to 
spare, I will upgrade my desktop PC to 17.10 and do just that.


Matt Eastwood · Brand Stylist.

Web Design · Photography
Copywriting · Branding

Home  · Facebook  · 
LinkedIn 

Phone: 514·568·7221

On 10/20/2017 05:40 PM, Pascal Obry wrote:

Matt,


I've been doing some reading about Ubuntu 17.10 and the new Wayland
display server. It turns out that the NVidia drivers aren't yet
(very) compatible with that.
Do any of the NVidia owners among you already have Darktable running
on Ubuntu 17.10 under Wayland, and are you able to use OpenCL
acceleration?
If it doesn't work, I think I'll stick with Ubuntu 17.04 until NVidia
support for Wayland matures.

Why? You can use 17.10 with plain Xorg as done with 17.04. Those are
completely orthogonal problems. And wait for 17.10 to have proper
support for OpenCL on Wayland.




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Re: [darktable-user] Centos 6.8 and darktable

[Robert William Hutton]

On 30/08/17 01:55, F L wrote:
It's a regular Dell laptop.  I got a little further with 2.0.7, but that one was complaining about 
GTK3 not being there.  I guess the one that comes with teh RHEL/Centos 6.8 distro (darktable-1.0.5) 
is probably the only one that will work.  gphoto2 seems to work with that camera though.


I believe that darktable 1.6.9 was the last release before the migration to 
GTK3.

-R

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Re: [darktable-user] Automatic exposure adjustment with style

[Robert William Hutton]

On 16/05/17 04:48, Andreas Mueller wrote:

Thanks, that's definitely an option.
Though I prefer using the exposure module. Using levels or curves I usually end 
up with an
oversaturated or undersaturated image, depending on which direction I moved the 
grey point. Not sure
if there's an easy way to compensate for that automatically.


There's a bit on the automatic exposure mode in one of my videos:

https://youtu.be/VJbJ0btlui0?t=8m10s

Though you're right, the black point ends up being set manually as far as I can 
tell.

Regards,

Rob

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Re: [darktable-user] Darktable fonts too big, and red outline, since upgrade to Kubuntu 17.04

[Robert William Hutton]

On 19/04/17 13:22, Shane Simmons wrote:

I didn't build from source, no. I installed it via Pascal de Bruijn's PPA.
The problem occurred when I upgraded, even though it didn't change the version 
number...

Should I try a complete removal and re-installation?


I think you have the yakkety version still installed.  Have a look in 
your /etc/apt/sources.list.d directory for a file like: 
pmjdebruijn-ubuntu-darktable-release-yakkety.list.  You'll probably see 
that the entry has been commented out during the distribution upgrade 
process (there's a warning about this during the upgrade).  Remove the # 
from the beginning of the line and update the yakkety to zesty, so 
something like:


deb http://ppa.launchpad.net/pmjdebruijn/darktable-release/ubuntu zesty main

Then do an upgrade, something like:

sudo apt update && sudo apt full-upgrade

You might want to check any other .list files in that directory too, in 
case you have other external sources that are disabled.  You can also do 
this through the GUI by going to:


System Settings -> Software & Updates, Other Software tab.

Regards,

Rob

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Re: [darktable-user] Darktable fonts too big, and red outline, since upgrade to Kubuntu 17.04

[Robert William Hutton]

On 19/04/17 13:22, Shane Simmons wrote:

I didn't build from source, no. I installed it via Pascal de Bruijn's PPA.
The problem occurred when I upgraded, even though it didn't change the version 
number...

Should I try a complete removal and re-installation?


I think you have the yakkety version still installed.  Have a look in your /etc/apt/sources.list.d 
directory for a file like: pmjdebruijn-ubuntu-darktable-release-yakkety.list.  You'll probably see 
that the entry has been commented out during the distribution upgrade process (there's a warning 
about this during the upgrade).  Remove the # from the beginning of the line and update the yakkety 
to zesty, so something like:


deb http://ppa.launchpad.net/pmjdebruijn/darktable-release/ubuntu zesty main

Then do an upgrade, something like:

sudo apt update && sudo apt full-upgrade

You might want to check any other .list files in that directory too, in case you have other external 
sources that are disabled.  You can also do this through the GUI by going to:


System Settings -> Software & Updates, Other Software tab.

Regards,

Rob

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Re: [darktable-user] Darktable fonts too big, and red outline, since upgrade to Kubuntu 17.04

[Robert William Hutton]

On 19/04/17 12:48, Shane Simmons wrote:

After I upgraded to Kubuntu 17.04, from 16.10, I've had quite a few problems.  
One of them is with
Darktable -- the upgrade seemed to have done something with my darktable.css 
file, and now the
program's interface is all screwed up.


That normally happens when darktable was built with one version of GTK, and then run on a system 
with a different version.  Did you build from source, perchance?  Maybe you could rebuild?


-R

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Re: [darktable-user] Can't expand modules by using the little triangle

[Robert William Hutton]

On 17/04/17 19:46, Bernhard wrote:

Robert William Hutton schrieb am 17.04.2017 um 11:40:

On 17/04/17 19:28, Bernhard wrote:

I updated from LM17 to LM18.1 and thus dt2.0.x to dt2.2.4 from
Pascal's PPA.

Now I notice that it's not possible to use those little triangles to
expand a module any more since they are covered by the scrollbar when I
hover on them with the mouse. Expanding IS possible by clicking on the
title but:

Is this really a wanted behaviour?


No.  Is this XFCE, MATE or Cinnamon?


Sorry, I forgot: LM18.1 64bit Cinnamon, to be precise


I just installed LM18.1 Cinnamon 64-bit in a virtual machine and tried 
it out.  Indeed, the scrollbars pop out and over the edge of the modules 
when you hover-over the triangles.  However, seeing as you don't 
actually need to click the triangle, you only need to click anywhere on 
the title bar, I guess this isn't a huge issue (though it could confuse 
users).


Seems to me to be an issue with Cinnamon and the way it's drawing its 
scrollbars.  Not sure that any of the devs are using it.


Regards,

Rob

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Re: [darktable-user] Can't expand modules by using the little triangle

[Robert William Hutton]

On 17/04/17 19:28, Bernhard wrote:

I updated from LM17 to LM18.1 and thus dt2.0.x to dt2.2.4 from Pascal's PPA.

Now I notice that it's not possible to use those little triangles to
expand a module any more since they are covered by the scrollbar when I
hover on them with the mouse. Expanding IS possible by clicking on the
title but:

Is this really a wanted behaviour?


No.  Is this XFCE, MATE or Cinnamon?

-R

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Re: [darktable-user] Does OpenCL require the AMDGPU-PRO driver? Yes, but does not require installation, just some libs

[Robert William Hutton]

Well, ultimately you'll be able to run darktable with opencl support with all-opensource drivers on 
AMD.  That might be worth the pain.


Meanwhile I've got a second install of Ubuntu on my machine (15.10, the last one with fglrx support) 
and I'm trying to get an install of 17.04 to work with the opensource amdgpu driver and the 
closed-source OpenCL from AMDGPU-PRO 16.60.  I'm yet to get it to work with my R9 280, though I'm 
most of the way there.


I had to blacklist the radeon kernel module so that the opencl driver would use the amdgpu kernel 
module, and only blacklisting through grub worked for me, not /etc/modprobe.d/*.  Kernel command line:


quiet splash modprobe.blacklist=radeon

etc.

-R

On 28/03/17 16:55, Pascal Obry wrote:


Hi Ulrich,


That's a Sea Island generation GPU from AMD. amdgpu-pro does not
support  Sea Island and its predecessor Southern Island. The
latter  affects my HD7950 (Tahiti).


Sad news, but I'll move soon to an Nvidia card.


That is simply disgraceful!

For my side it means that I can still live with fglrx as long as it
is supported by OpenSUSE. This support will end on May 16th 2017,
which is the announced end of life for Leap 42.1.


Do you mean that my card should still be supported by fglrx?


Concerning OpenCL support in darktable for AMD: from my side AMD will
be half-deprecated by then. Currently I run alongside the AMD and a
seven years old NVIDIA (fully supported by NVIDIA drivers from day
one till today) to have an eye on both platforms. In future I will
focus all new developments only on NVIDIA. AMD platforms might or
might not work.
Issues will need to be fixed by those who are still keeping with AMD.


Agreed! We can't fight AMD plan to mess Linux support.

Thanks,



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Re: [darktable-user] Is there anyway to fix this?

[Robert William Hutton]

Try the shadows and highlights module, or just pulling down the exposure slightly.  But I'd say 
you've probably blown those highlights, especially if that's a JPG.


-R

On 25/01/17 09:32, Michael wrote:

I can't control the camera as it is from a cheap drone.
Inline image 1

--
:-)~MIKE~(-:

 
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Re: [darktable-user] Start Darktable in "Test" Mode

[Robert William Hutton]

I've attached my startup script (based on one by LebedevRI) that does 
this, at least approximately.


-R

On 20/12/16 15:54, Scott wrote:

Hello.  I'd like to write a few lua scripts.  Is there an easy way to
start darktable as a "fresh" install (no database but also no other
configurations).  I'd like this for testing so that I know the script
would work on a fresh install but also so that I don't accidentally
mess up my database or configuration with a lua mistake.

I know there are some various command line options, specifically
--library.  I know there are a lot of other options for datadir,
tmpdir, configdir, etc, but I'm not sure which ones I need to leave or
change to get what I want.  I'd love to have just a --test option for
working/debugging lua scripts.
http://www.darktable.org/usermanual/ch01.html.php#program_invocation

Thanks,
Scott

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darktable-dev.sh
Description: application/shellscript

Re: [darktable-user] Nikon D5 white balance presets support

[Robert William Hutton]

On 01/12/16 21:51, Roman Lebedev wrote:

On Thu, Dec 1, 2016 at 2:55 AM, Robert William Hutton

for file in *; do ~/wd/darktable/tools/extract_wb "$file" >>
~/white_balance.txt ; echo >> ~/white_balance.txt ; done


Uh, oh, s/is the tool/can work on multiple raw files at once, no need
to call it in a loop/


Ah, the reason I called it in a loop was so that I could get a blank 
line between the output for each image with the echo >> 
~/white_balance.txt.  This is because the script gave me multiple lines 
of output for each file, and I had to go and sort out which line I 
wanted to keep.  E.g.:



$ ~/wd/darktable/tools/extract_wb IMG_2130.CR2 2> /dev/null
  { "Canon", "PowerShot G7 X", Daylight, 0, { 
1.7831603229527104, 1, 2.1199538638985005, 0 } },
  { "Canon", "PowerShot G7 X", Daylight, 0, { 
2.1252847380410023, 1, 1.703872437357631, 0 } },
  { "Canon", "PowerShot G7 X", Shade   , 0, { 
2.4133180252583237, 1, 1.4638346727898968, 0 } },
  { "Canon", "PowerShot G7 X", Cloudy  , 0, { 
2.2782212086659066, 1, 1.5530216647662485, 0 } },
  { "Canon", "PowerShot G7 X", Tungsten, 0, { 
1.4674285714285715, 1, 2.7302857142857144, 0 } },
  { "Canon", "PowerShot G7 X", WhiteFluorescent, 0, { 
2.0830188679245283, 1, 2.3559748427672957, 0 } },
  { "Canon", "PowerShot G7 X", Flash   , 0, { 
2.5853658536585367, 1, 1.3612078977932636, 0 } },



Note that in that output there is two daylight lines... The first is the 
value I want, shot at -9 on the blue/amber axis, the second is the value 
for 0 on the blue/amber axis, and the following ones are also for 0 on 
the blue/amber axis for the other presets.  So I had to go delete all 
the spurious lines and change the number from 0 to -9, and so on for all 
the other files.  Having the blank line in between just made this less 
confusing.


Worth filing bug reports for this stuff?

-R

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Re: [darktable-user] Nikon D5 white balance presets support

[Robert William Hutton]

On 30/11/16 22:52, Roman Lebedev wrote:

On Wed, Nov 30, 2016 at 2:31 AM, Robert William Hutton
<r...@helms-deep.net> wrote:

On 30/11/16 09:58, Jimmy Gowrisanker wrote:
git clone https://github.com/darktable-org/darktable.git
cd 
rm -rf ~/white_balance.txt
for file in *; do ~/wd/darktable/tools/extract_wb "$file" >>
~/white_balance.txt ; echo >> ~/white_balance.txt ; done



Rob, you have rather outdated information :)
https://github.com/darktable-org/darktable/blob/master/tools/extract_wb
is the tool.


Isn't that the tool that I used?  Just using git to clone the repo 
rather than downloading from github?


-R

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Re: [darktable-user] Nikon D5 white balance presets support

[Robert William Hutton]

On 30/11/16 10:31, Robert William Hutton wrote:

sudo apt-get install git ruby ruby-nokogiri


Sorry, I missed a dependency:

sudo apt-get install libimage-exiftool-perl

-R

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Re: [darktable-user] Nikon D5 white balance presets support

[Robert William Hutton]

On 30/11/16 09:58, Jimmy Gowrisanker wrote:

Based on the instructions
here 
http://www.darktable.org/2012/10/whats-involved-with-adding-support-for-new-cameras/
 , I took 9
shots (auto0:Keep white-reduce warm colours, auto1:normal, auto1: keep warm 
colours, Incan, FL,
Sunlight, flash, cloudy and shade). What do I do now? I seem to be lost !


There's a few different scripts floating around to help you extract the white balance info from your 
images.  Here's what I do:


Download latest exiftool from http://www.sno.phy.queensu.ca/~phil/exiftool/ the first link will do. 
I find the version in Ubuntu is too old.


sudo apt-get install git ruby ruby-nokogiri
mkdir wd && cd wd
tar xvzf ~/Downloads/Image-ExifTool-10.36.tar.gz  # this is the exiftool 
download
export PATH=$PATH:~/wd/Image-ExifTool-10.36
git clone https://github.com/darktable-org/darktable.git
cd 
rm -rf ~/white_balance.txt
for file in *; do ~/wd/darktable/tools/extract_wb "$file" >> ~/white_balance.txt ; echo >> 
~/white_balance.txt ; done


Now, have a look in the ~/white_balance.txt file.  You will see the extracted white balance 
information for each image that you made.  For me, I got more than one line per image, so I had to 
go through and select the one that was the setting that I set the camera to.  Delete the other lines 
so you end up with one line per image.


Add a comment to the top of your file with camera name and version like this:

  /* Fujifilm X-T10 Firmware Version 1.21 */

Now, you can either just post this info into a redmine issue:

https://redmine.darktable.org/projects/darktable

Or you can test them out first by copy/pasting them into the source code of darktable and building 
and installing to test.  If you're running darktable 2.0.x, the instructions are here:


https://redmine.darktable.org/projects/darktable/wiki/Building_darktable_20

Version 2.2 rc is here:

https://redmine.darktable.org/projects/darktable/wiki/Building_darktable_22

After you check out the tag for the version you want to build, you need to copy your new white 
balance values into this file:


~/wd/darktable/src/external/wb_presets.c

Then you build and install, and run your newly installed darktable by doing:

/opt/darktable/bin/darktable

Make sure you back up your database before running your modified darktable 
version though!

cd ~/.config
cp -a ./darktable ./darktable.bak


Hope that helps!  Also, you might want to consider shooting additional images with the white balance 
fine-tune settings on your camera (this is typically 19 images per white balance preset, though). 
This enables the fine tune slider in the white balance module of darktable which I find really useful.


Regards,

Rob

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Re: [darktable-user] ppa

[Robert William Hutton]

On 27/10/16 08:29, Michael wrote:

I know someone asked this a couple of days ago but the responses to his 
question where not open to
everyone. What is the current ppa for darktable?


https://launchpad.net/~pmjdebruijn/+archive/ubuntu/darktable-release


Rob

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Re: [darktable-user] Print tab absent

[Robert William Hutton]

Hi Normand,

How did you install darktable?  On what linux system?  Instructions on how to install all of the 
necessary dependencies and build from source are here:


https://redmine.darktable.org/projects/darktable/wiki/Building_darktable_20

Although that appears to be down for me atm, so try the cached version:

https://webcache.googleusercontent.com/search?q=cache:9w7LyGRXE5QJ:https://redmine.darktable.org/projects/darktable/wiki/Building_darktable_20+=1=en=clnk=au

When you run build.sh, pay close attention to the messages that it prints at the start of the build 
process.  This will tell you if any of the dependencies are not found.


Regards,

Rob

On 25/10/16 11:38, Normand Fortier wrote:

I'm considering buying a printer and am trying to figure out how I would print. 
I am thinking of
using TurboPrint.
Darktable documentation and videos show a "Print" tab in lighttable mode, but 
in my case it does not
appear (the last tab is "slideshow").
I'm using 2.0.6 and cups is installed on my system.

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Re: [darktable-user] Lesson request

[Robert William Hutton]

On 29/07/16 12:22, Michael wrote:

Riley, I would like to see a lesson on using masks and dodge if you could.


Maybe post one of the RAW files (on Dropbox or similar) as an example to be 
worked on in the video?

-R

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Re: [darktable-user] B are too cold

[Robert William Hutton]

I'd use the color correction module for this.  There are even a couple of presets for warming: warm 
tone and warming filter.  Of course you can drag the two circles (white for highlights, black for 
lowlights) until you get what you want.


Cheers,

Rob

On 09/07/16 10:03, darkta...@911networks.com wrote:

Hi,

DT 2.0.4 (upgrade soon) on arch.

I find that my B are too cold and I would like to add a little of
bit of warm tinge to it.

How do I do that? The monochrome module only changes what is black or
what not the time of the white and the blacks.

Thanks



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Re: [darktable-user] I love darktable

[Robert William Hutton]

On 22/06/16 09:28, Michael wrote:

My camera takes braketed images but only saves as JPG. What would make


What camera is that? Seems somewhat self-defeating to not be able to 
save bracketed images as RAW.


-R

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Re: [darktable-user] Re: Support for Canon EOS 80D

[Robert William Hutton]

On 17/06/16 16:11, Robert William Hutton wrote:

On 16/06/16 18:41, Edward Kamau wrote:

I don't know if this is still wanted, but I did the Noise profiling shots as
per instructions in the 2012 blog post. two shots for each ISO. Set1 exposed
-1/3rd stop, set2 -2/3rd stop. All uploaded to my google drive here:
https://drive.google.com/open?id=0B_mzuqJlg3wtaFRUUTkyVGVDUWM
  Theres a README.txt there with the gory details. I


Fantastic. :)

I'll have a go at generating the WB and profiled denoise metadata soon, 
hopefully this weekend
sometime if someone doesn't beat me to it.


OK, white balance metadata are now attached to the issue on redmine.

Cheers,

Rob

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Re: [darktable-user] color conversion issue

[Robert William Hutton]

Try this:

In the input color profile module, in the gamut clipping dropdown list, select 
linear Rec2020 RGB.

See: 
https://www.darktable.org/usermanual/ch03s04s03.html.php#input_color_profile

Regards,

Rob


On 14/06/16 15:42, I. Ivanov wrote:

Hi,

Not sure if this is the proper channel. I am observing the following color 
conversion - very odd blues.
This is not the only image but it only happens with the blues.
My setup
- ubuntu 14.04 - 64 bit
- darktable 2.0.4 (I have observed it since 1.6)
other details.
- always use little CSM2 - if I disable this option the colors are way better 
in the blues.
- cannot observe on screen before exporting (it is only visible in the jpg). 
Actually - if I look
really close I can see the shades but when exported it is extremely exaggerated.
- another way to remove it or minimize it is by turning off velvia.

The difference in the 2 images is - the bad one - very odd blues has velvia 40% 
0.8 for mid tones.

Thank you...




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Re: [darktable-user] OpenCLwith Radeon driver possible?

[Robert William Hutton]

On 05/06/16 08:44, David Farmer wrote:

As the subject suggests, is it possible to use darktable with OpenCL
support with the open source radeon driver?


No.  You need the binary driver (which isn't available yet for Ubuntu 
16.04 incidentally).


-R

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Re: [darktable-user] REQ: Feature

[Robert William Hutton]

On 31/05/16 12:34, Krishnan Srinivasan wrote:

With Graduated Density we can add a gradient area from dark to light
to the image. Can we add a Hue saturation or color wheel to that
module which can help people to change the sky color in certain
images. Ofcourse we can add a mask and do the necessary correction ,
but still this will be a useful enhancement :)


Do you mean like the hue/saturation sliders in darktable 2.0 (see 
screenshot)?  Or something else?


Regards,

Rob


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