Re: [darktable-user] Sharpening (round 2)

[I. Ivanov]

I think part of the effect (in addition to what the others have found 
out) is the viewer that you are using.


This is in Geeqie - color matched exported at 900 dpi and seen @ 100%

https://www.dropbox.com/s/ek5e3me3haq3dn2/Screenshot%20from%202017-01-17%2020-33-12.png?dl=0

This is Geeqie - color matched - exported at 100% (no reduction at all) 
but when seen in Geeqie - it is quite reduced 1:1.7


https://www.dropbox.com/s/dd7zskx6bh8kkxi/Screenshot%20from%202017-01-17%2020-33-38.png?dl=0

This is one and the same image - no difference - left is Geeqie - color 
matched - 900 dpi and seen @100%, right is EOG (Gnome Viewer) same image 
@100%


https://www.dropbox.com/s/1b0zepe85x4sm75/Screenshot%20from%202017-01-17%2020-38-37.png?dl=0

To me - it looks like both images when seen in Geeqie viewer look very 
much the same. On the other hand - Gnome Viewer - it looks sharper to me 
(but it is not color matched). I would say - look at the images @100% as 
the others mentioned and have them in a calibrated viewer.


Hope this helps,

Regards,

B


On 2017-01-17 08:36 AM, darkta...@911networks.com wrote:

On Mon, 16 Jan 2017 21:21:54 -0800
"I. Ivanov"  wrote:


You may want to provide a raw file and xmp so we can test.

https://drive.google.com/file/d/0B7HTmJCO2gG7WDl1NUVxbVQ3aGs/view?usp=sharing




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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Guillermo Rozas]

> So what do people usually do get the best results? I guess I should use sRGB
> for showing it in the browser and just deal with the bad colors

Unfortunately, yes. If the picture is for web showing, you'll have to
asume that they'll look at it in a non-color managed browser (that
will assign sRGB to the image) and probably in a crappy non calibrated
monitor :(
However, I think one should not compromise the quality because of it.
One should process for the right colors, enjoy it and show it in the
right way, and hope the situation gets better with time for most of
the people (OK, the situation is not THAT bad, the standard for
browsers and monitors is much better now than several years ago)

> but when I
> do prints or It's for me showing it on my computer then I should chose a
> bigger color space?

When printing you should get the color profile of the printer (more or
less easy depending on how do you print) and use it in the same way in
the soft proof. But in this case I would argue that, as your final
objective "for you" is the print, you have to pay more attention to
get the colors right there.

Regards,
Guillermo

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Jeena]

Hi,


That difference seems to be related to color space. Darktable uses a
much bigger color space than sRGB (or even AdobeRGB), so when
exporting there has to be some mapping between them (that's what the
intent option is for). The "soft proof" button in darkroom allows you
to switch between DT's color space and any other (sRGB in particular)
to check the result of this mapping. When I do that on your picture I
get an effect very similar to the screen capture.
So what do people usually do get the best results? I guess I should use 
sRGB for showing it in the browser and just deal with the bad colors but 
when I do prints or It's for me showing it on my computer then I should 
chose a bigger color space?


Obviously I had the biggest problems with printing because of RGB vs 
CYMK I guess, I was more often than not disappointed about the colors 
when I finally got my 250 vinyl discs or my 500 CDs or the print for the 
wall. But that is a different story and I'll need to learn about that 
some other time.


/Jeena

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Re: [darktable-user] Not happy with the colours

[Oliver Bedford]

Am Dienstag, den 17.01.2017, 20:12 +0100 schrieb Stéphane Gourichon:
> Hello,
> 
> Can you share raw, JPEG-from-dt, XMP (and possibly screenshot with 
> explanations) on some site for others on the list to see ?

As I'm reluctant to post personal photos, I can't show you an example
with skin tones, but here you can see the difference in general
tonality:

dt output:
https://www.dropbox.com/s/837ki4vkigh7rsx/M3I_0549-dt.jpg?dl=0

OOC JPEG:
https://www.dropbox.com/s/7qlq89a1wvjn32v/M3I_0549.JPG?dl=0

RAW and xmp:

https://www.dropbox.com/s/sm2qf7277cinl64/M3I_0549.CR2?dl=0
https://www.dropbox.com/s/im8vlqpqprqde1i/M3I_0549.CR2.xmp?dl=0

Difference clearly visible in the sky between the trees above the bench,
more subtle in other areas.
Please ignore the over-sharpening of the OOC jpegs.

Regards,
Oliver



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Re: [darktable-user] what graphics card to get?

[junkyardsparkle]

On Tue, Jan 17, 2017, at 14:11, Guillermo Rozas wrote:

> Try increasing the opencl_memory_headroom parameter as mentioned by
> Matthias before. It worked for my 960M for those particular images.

 Thanks, I will, if I ever need to for my actual use case. Other than an 
occasional stitched panorama, I'm usually dealing with 16MP images, and so far 
haven't encountered any tiling issues with those (even when testing with the 
equalizer, which I rarely use for general purposes). This is another example of 
how simplistic benchmark numbers can be misleading: even if a person looking at 
them allowed for the fact that the test image was larger, and hence slower, 
than their own use case, they might very well assume a linear relationship, 
when the reality about tripping a threshold or not.

It also seems like if you're comparing the cards to a particular CPU (i7 or 
what have you), you should really be using that CPU for the card tests, too...

-- 
jys

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Guillermo Rozas]

> here is the RAW: http://jeena.net/t/darktable-raw.NEF
> and here the xmp http://jeena.net/t/darktable-raw.NEF.xmp
>
> I uploaded also a annotated version of my first image
> https://jeena.net/t/darktable-export-annotated.png in which "1" is the cloud
> which one can see in the Darktable preview but not in the browser, and "2"
> is the blue gradient in the water which goes down much further in the
> Darktable peview compared to the image in the browser, where it's almost
> black down there. Also the house is brighter in the Darktable preview.

That difference seems to be related to color space. Darktable uses a
much bigger color space than sRGB (or even AdobeRGB), so when
exporting there has to be some mapping between them (that's what the
intent option is for). The "soft proof" button in darkroom allows you
to switch between DT's color space and any other (sRGB in particular)
to check the result of this mapping. When I do that on your picture I
get an effect very similar to the screen capture.

Regards,
Guillermo

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Re: [darktable-user] what graphics card to get?

[junkyardsparkle]

On Tue, Jan 17, 2017, at 00:26, Matthieu Moy wrote:
> 
> GeForce GTX 1050 Ti is a 140 $ card, so not a high-end one but not a crappy 
> one either, and it's 50 % slower than a core i7 for these images.

Those benchmark totals don't give a very meaningful overview by themselves. I 
just installed a 1050 on an older Phenom II box (still hoping to see 
open-source AMD support some day, but can't hold my breath any longer), and 
upon running the benchmark, found that it performs quite well, EXCEPT that it 
chokes on that particular application of the equalizer. Falling back to CPU for 
that results in 15.5 of the total 26.2 seconds, using three tiles on my slow 
dual-core processor. Full output for the run is attached.

In my real-world usage, the difference is day-and-night. Export time isn't that 
important to me compared to interface usability. I would probably still be 
happily waiting on AMD if it weren't for the painfully slow adjustment of 
rotation that I often need to do in the crop and rotate module. ;)

-- 
jys


darktable user mailing list
to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org[opencl_init] opencl related configuration options:
[opencl_init] 
[opencl_init] opencl: 1
[opencl_init] opencl_library: ''
[opencl_init] opencl_memory_requirement: 768
[opencl_init] opencl_memory_headroom: 300
[opencl_init] opencl_device_priority: '*/!0,*/*/*'
[opencl_init] opencl_size_roundup: 16
[opencl_init] opencl_async_pixelpipe: 0
[opencl_init] opencl_synch_cache: 0
[opencl_init] opencl_number_event_handles: 25
[opencl_init] opencl_micro_nap: 1000
[opencl_init] opencl_use_pinned_memory: 0
[opencl_init] opencl_use_cpu_devices: 0
[opencl_init] opencl_avoid_atomics: 0
[opencl_init] opencl_enable_markesteijn: 1
[opencl_init] 
[opencl_init] found opencl runtime library 'libOpenCL'
[opencl_init] opencl library 'libOpenCL' found on your system and loaded
[opencl_init] found 1 platform
[opencl_init] found 1 device
[opencl_init] device 0 `GeForce GTX 1050' has sm_20 support.
[opencl_init] device 0 `GeForce GTX 1050' supports image sizes of 16384 x 32768
[opencl_init] device 0 `GeForce GTX 1050' allows GPU memory allocations of up 
to 499MB
[opencl_init] device 0: GeForce GTX 1050 
 GLOBAL_MEM_SIZE:  1998MB
 MAX_WORK_GROUP_SIZE:  1024
 MAX_WORK_ITEM_DIMENSIONS: 3
 MAX_WORK_ITEM_SIZES:  [ 1024 1024 64 ]
 DRIVER_VERSION:   375.26
 DEVICE_VERSION:   OpenCL 1.2 CUDA
[opencl_init] compiling program `demosaic_ppg.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/demosaic_ppg.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/demosaic_ppg.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `atrous.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/atrous.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/atrous.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `basic.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/basic.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/basic.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `blendop.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/blendop.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/blendop.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `highpass.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/highpass.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/highpass.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `nlmeans.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/po/.cache/darktable/cached_kernels_for_GeForceGTX1050/nlmeans.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/nlmeans.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:


[opencl_init] compiling program `gaussian.cl' ..
[opencl_load_program] loaded cached binary program from file 

Re: [darktable-user] Exported JPEGS always darker and more satuated

[Jeena]

Hi,


I'm probably making a very dumb mistake, but when I import your raw+xmp
into darktable I get a severely under-exposed image with little
resemblance to your jpeg. Is the xmp correct?
I have no idea how to work with those xmp files, I just took the file 
which had the same name as the raw file plus the .xmp How do you import 
this file?



One more question: do you have a style applied when exporting?

No, no styles.

/Jeena

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Oliver Bedford]

One more question: do you have a style applied when exporting?

Oliver




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Re: [darktable-user] Exported JPEGS always darker and more satuated

[I. Ivanov]

Also, Firefox can be color managed (but by default it is not turned on)

http://cameratico.com/guides/firefox-color-management/

I use "Geeqie" for color managed viewer in Linux.

Regards,

B


On 2017-01-17 12:46 PM, Michael Below wrote:

Hi,

I think your problem is Firefox, not darktable. If Firefox has to scale
an image by factor 6,something, it is going to do it roughly and throw
away stuff. If the Gnome image viewer and darktable agree, then your
system seems to be setup alright.

Try uploading a correctly sized image for the web view, that should
come across right (more or less).

Cheers
Michael


Am Di 17 Jan 2017 21:19:47 CET
schrieb Jeena :


Hi,


I see JPEG is on https://jeena.net/photos/265 .

Yes, the direct link is:
https://jeena.net/system/photos/photos/000/000/265/original/kallbadhuset-varberg-night_08.jpg
and this is a JPEG which does look like the edit preview in Darktable
when I look at it in GNOME Image Viewer but loses the details in
Firefox, which is better than what I had before, where it didn't have
the details in GNOME Image Viewer either. What I changed was the
export profile from sRGB to Adobe RGB (compatible).


Can you share raw, JPEG-from-dt, XMP (and possibly screenshot with
explanations) for others on the list to see ?

here is the RAW: http://jeena.net/t/darktable-raw.NEF
and here the xmp http://jeena.net/t/darktable-raw.NEF.xmp


The effect is real in both your examples. I observe similar
differences when processing my photos from Nikon cameras. They do a
whole lot of processing finetuned by in-house color specialists and
engineers. first thing to do is not to expect darktable to match
manufacturer-specific result.

I don't think I'm doing that. I take the RAW, import it into
Darktable, edit it until I like it, then I export it and the JPEG
result doesn't look like the thing Darktable was showing me while I
was editing. That is why I tried to get help on the mailing list. I
don't quite know what a "manufacturer-specific result" is.

I uploaded also a annotated version of my first image
https://jeena.net/t/darktable-export-annotated.png in which "1" is
the cloud which one can see in the Darktable preview but not in the
browser, and "2" is the blue gradient in the water which goes down
much further in the Darktable peview compared to the image in the
browser, where it's almost black down there. Also the house is
brighter in the Darktable preview.


I personally would first consider changing the base curve. DT
offers two base curves for Nikon, "like" and "like alternate", I
guess you have tried them already?

No I don't think so, I'm also not sure if this is advice to make my
editing better or to try to make the dfiierence smaller between
Darktable preview and exported JPEG? I am aware of the fact that I'm
not good at editing yet, but I'd like to find out how I can get the
same picture out as a JPEG as Darktable is showing me while I'm
editing.

/Jeena


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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Michael Below]

Hi,

I think your problem is Firefox, not darktable. If Firefox has to scale
an image by factor 6,something, it is going to do it roughly and throw
away stuff. If the Gnome image viewer and darktable agree, then your
system seems to be setup alright. 

Try uploading a correctly sized image for the web view, that should
come across right (more or less).

Cheers
Michael


Am Di 17 Jan 2017 21:19:47 CET
schrieb Jeena :

> Hi,
> 
> > I see JPEG is on https://jeena.net/photos/265 .  
> Yes, the direct link is: 
> https://jeena.net/system/photos/photos/000/000/265/original/kallbadhuset-varberg-night_08.jpg
>  
> and this is a JPEG which does look like the edit preview in Darktable 
> when I look at it in GNOME Image Viewer but loses the details in 
> Firefox, which is better than what I had before, where it didn't have 
> the details in GNOME Image Viewer either. What I changed was the
> export profile from sRGB to Adobe RGB (compatible).
> 
> > Can you share raw, JPEG-from-dt, XMP (and possibly screenshot with 
> > explanations) for others on the list to see ?   
> here is the RAW: http://jeena.net/t/darktable-raw.NEF
> and here the xmp http://jeena.net/t/darktable-raw.NEF.xmp
> 
> > The effect is real in both your examples. I observe similar 
> > differences when processing my photos from Nikon cameras. They do a 
> > whole lot of processing finetuned by in-house color specialists and 
> > engineers. first thing to do is not to expect darktable to match 
> > manufacturer-specific result.  
> I don't think I'm doing that. I take the RAW, import it into
> Darktable, edit it until I like it, then I export it and the JPEG
> result doesn't look like the thing Darktable was showing me while I
> was editing. That is why I tried to get help on the mailing list. I
> don't quite know what a "manufacturer-specific result" is.
> 
> I uploaded also a annotated version of my first image 
> https://jeena.net/t/darktable-export-annotated.png in which "1" is
> the cloud which one can see in the Darktable preview but not in the
> browser, and "2" is the blue gradient in the water which goes down
> much further in the Darktable peview compared to the image in the
> browser, where it's almost black down there. Also the house is
> brighter in the Darktable preview.
> 
> > I personally would first consider changing the base curve. DT
> > offers two base curves for Nikon, "like" and "like alternate", I
> > guess you have tried them already?  
> No I don't think so, I'm also not sure if this is advice to make my 
> editing better or to try to make the dfiierence smaller between 
> Darktable preview and exported JPEG? I am aware of the fact that I'm
> not good at editing yet, but I'd like to find out how I can get the
> same picture out as a JPEG as Darktable is showing me while I'm
> editing.
> 
> /Jeena
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to
> darktable-user+unsubscr...@lists.darktable.org


-- 
Michael Below
Rechtsanwalt
www.judiz.de

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Re: [darktable-user] thumbnails do not match file

[I. Ivanov]

On 2017-01-17 12:25 PM, Patrick Shanahan wrote:

* I. Ivanov  [01-17-17 11:52]:


On 2017-01-16 02:15 AM, Tobias Ellinghaus wrote:

Am Sonntag, 15. Januar 2017, 22:22:12 CET schrieb I. Ivanov:

Hi Guys,

I stumbled on an odd behavior. DT 2.2.1 on Ubuntu 16.04. I did the
following:

1. Have a folder on the local drive with 200+ images all corrected
everything is good.
2. Removed the images from the collection
3. Copy the images on a NAS share (my archive location)
4. Imported them and noticed not all thumbnails look right.

Did you ever copy back an older library.db? What you describe can happen when
image ids get "reused" internally, i.e., when there was another image before
with the same id which put its thumbnail into the cache.

[...]

I only have one library. I process them when they are on the local HDD. Once
they are done - I would remove them from there, move them on NAS (it is
actually a USB drive connected to the router) and re import the images from
this "archive" location.

I do such a workflow in order to gain speed (local drive is SSD) and the
"NAS" is slower.

Why not use dt to "move" the files and continue maintaining them the dt's
library.db?  Seems like a lot of extra work the way you describe.

I have several sub folders and when I copy them everything goes 
together. RAW +high res jpg exports +lo res JPG and in some cases even 
movies... Currently I just grab the complete folder. If I do "move" I'd 
still have to manually copy everything else.



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Re: [darktable-user] thumbnails do not match file

[Patrick Shanahan]

* I. Ivanov  [01-17-17 11:52]:
> 
> 
> On 2017-01-16 02:15 AM, Tobias Ellinghaus wrote:
> > Am Sonntag, 15. Januar 2017, 22:22:12 CET schrieb I. Ivanov:
> > > Hi Guys,
> > > 
> > > I stumbled on an odd behavior. DT 2.2.1 on Ubuntu 16.04. I did the
> > > following:
> > > 
> > > 1. Have a folder on the local drive with 200+ images all corrected
> > > everything is good.
> > > 2. Removed the images from the collection
> > > 3. Copy the images on a NAS share (my archive location)
> > > 4. Imported them and noticed not all thumbnails look right.
> > Did you ever copy back an older library.db? What you describe can happen 
> > when
> > image ids get "reused" internally, i.e., when there was another image before
> > with the same id which put its thumbnail into the cache.
> > 
> > [...]
> I only have one library. I process them when they are on the local HDD. Once
> they are done - I would remove them from there, move them on NAS (it is
> actually a USB drive connected to the router) and re import the images from
> this "archive" location.
> 
> I do such a workflow in order to gain speed (local drive is SSD) and the
> "NAS" is slower.

Why not use dt to "move" the files and continue maintaining them the dt's
library.db?  Seems like a lot of extra work the way you describe.

-- 
(paka)Patrick Shanahan   Plainfield, Indiana, USA  @ptilopteri
http://en.opensuse.orgopenSUSE Community Memberfacebook/ptilopteri
Photos: http://wahoo.no-ip.org/gallery2  Registered Linux User #207535  
  
Photos: http://wahoo.no-ip.org/piwigo@ http://linuxcounter.net

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Jeena]

Hi,


I see JPEG is on https://jeena.net/photos/265 .
Yes, the direct link is: 
https://jeena.net/system/photos/photos/000/000/265/original/kallbadhuset-varberg-night_08.jpg 
and this is a JPEG which does look like the edit preview in Darktable 
when I look at it in GNOME Image Viewer but loses the details in 
Firefox, which is better than what I had before, where it didn't have 
the details in GNOME Image Viewer either. What I changed was the export 
profile from sRGB to Adobe RGB (compatible).


Can you share raw, JPEG-from-dt, XMP (and possibly screenshot with 
explanations) for others on the list to see ? 

here is the RAW: http://jeena.net/t/darktable-raw.NEF
and here the xmp http://jeena.net/t/darktable-raw.NEF.xmp

The effect is real in both your examples. I observe similar 
differences when processing my photos from Nikon cameras. They do a 
whole lot of processing finetuned by in-house color specialists and 
engineers. first thing to do is not to expect darktable to match 
manufacturer-specific result.
I don't think I'm doing that. I take the RAW, import it into Darktable, 
edit it until I like it, then I export it and the JPEG result doesn't 
look like the thing Darktable was showing me while I was editing. That 
is why I tried to get help on the mailing list. I don't quite know what 
a "manufacturer-specific result" is.


I uploaded also a annotated version of my first image 
https://jeena.net/t/darktable-export-annotated.png in which "1" is the 
cloud which one can see in the Darktable preview but not in the browser, 
and "2" is the blue gradient in the water which goes down much further 
in the Darktable peview compared to the image in the browser, where it's 
almost black down there. Also the house is brighter in the Darktable 
preview.


I personally would first consider changing the base curve. DT offers 
two base curves for Nikon, "like" and "like alternate", I guess you 
have tried them already?
No I don't think so, I'm also not sure if this is advice to make my 
editing better or to try to make the dfiierence smaller between 
Darktable preview and exported JPEG? I am aware of the fact that I'm not 
good at editing yet, but I'd like to find out how I can get the same 
picture out as a JPEG as Darktable is showing me while I'm editing.


/Jeena


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Re: [darktable-user] what graphics card to get?

[Patrick Rudin]

schrieb Germano Massullo :
> And keep in mind that OpenCL capabilities are coming into FOSS driver
> soon.

At least, the numbers look good, no big differences between ROCm and
PRO on RX460 and RX480:
http://www.phoronix.com/vr.php?view=24028

Still a way to go, but hopefully it will be open source soon...


regards

Patrick

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Re: [darktable-user] thumbnails do not match file

[I. Ivanov]

On 2017-01-17 07:01 AM, Tobias Ellinghaus wrote:

Am Montag, 16. Januar 2017, 09:59:30 CET schrieb I. Ivanov:

On 2017-01-16 02:15 AM, Tobias Ellinghaus wrote:

Am Sonntag, 15. Januar 2017, 22:22:12 CET schrieb I. Ivanov:

Hi Guys,

I stumbled on an odd behavior. DT 2.2.1 on Ubuntu 16.04. I did the
following:

1. Have a folder on the local drive with 200+ images all corrected
everything is good.
2. Removed the images from the collection
3. Copy the images on a NAS share (my archive location)
4. Imported them and noticed not all thumbnails look right.

Did you ever copy back an older library.db? What you describe can happen
when image ids get "reused" internally, i.e., when there was another
image before with the same id which put its thumbnail into the cache.

[...]

I only have one library. I process them when they are on the local HDD.
Once they are done - I would remove them from there, move them on NAS
(it is actually a USB drive connected to the router) and re import the
images from this "archive" location.

That is very strange. In the past such problems could happen when the
library.db file was restored from backup – but even that should be fixed
nowadays.

Please run this and report the result back:

echo "select max(id) from images"  | sqlite3 ~/.config/darktable/library.db
cd ~/.cache/darktable/mipmaps-`echo -n $HOME/.config/darktable/library.db |
sha1sum | cut -f1 -d ' '`.d
for i in *; do echo -n "$i: "; ls $i/|sort -n | tail -1; done

Here it is...

bojo@cheetah:~$ echo "select max(id) from images"  | sqlite3 
~/.config/darktable/library.db
The program 'sqlite3' is currently not installed. You can install it by 
typing:

sudo apt install sqlite3
bojo@cheetah:~$ cd ~/.cache/darktable/mipmaps-`echo -n 
$HOME/.config/darktable/library.db |

> sha1sum | cut -f1 -d ' '`.d
bojo@cheetah:~/.cache/darktable/mipmaps-c98cb315109ad10973463fc5119a5bb09089cf2b.d$ 
for i in *; do echo -n "$i: "; ls $i/|sort -n | tail -1; done

0: 91689.jpg
1: 91557.jpg
2: 81394.jpg
3: 91640.jpg
4: 91610.jpg
bojo@cheetah:~/.cache/darktable/mipmaps-c98cb315109ad10973463fc5119a5bb09089cf2b.d$ 





I do such a workflow in order to gain speed (local drive is SSD) and the
"NAS" is slower.


Regards,

B

Tobias

Regards,
B

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[darktable-user] Re: what graphics card to get?

[Matthias Bodenbinder]

Am 17.01.2017 um 12:47 schrieb matth...@bodenbinder.de:
> Am 2017-01-17 8:21, schrieb Colin Adams:
> 
>>
>> How do you arrive at that figure?
>>
> I did a lot of testing. ;-)
> 
> For your reference: Here is the thread I started in 2014:
> https://www.mail-archive.com/darktable-devel@lists.sourceforge.net/msg05054.html


This is the correct link:
http://www.mail-archive.com/darktable-devel@lists.sourceforge.net/msg05054.html

The other link is broken somehow.

Matthias



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Re: [darktable-user] thumbnails do not match file

[Frank J.]

Am 16.01.2017 um 07:22 schrieb I. Ivanov:
...
> Anybody seen this? ...
> 
> Regards,
> B

Maybe you changed a lot af pictures and then ended DT before the
background-processes had time to build new thumbs.

Frank


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Re: [darktable-user] thumbnails do not match file

[Frank J.]

Am 16.01.2017 um 18:59 schrieb I. Ivanov:
...
> ... - I would remove them from there, move them on NAS
> (it is actually a USB drive connected to the router) and re import the
> images from this "archive" location.
...
> Regards,
> B

I also move from SSD-Workroom to HDD-Archiv when the work is done.
But I use "Selected / Move"  (ausgewählte Bilder / verschieben) and not
remove/reimport.

Frank

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Re: [darktable-user] Not happy with the colours

[Stéphane Gourichon]

Hello,

Can you share raw, JPEG-from-dt, XMP (and possibly screenshot with 
explanations) on some site for others on the list to see ?


Le 17/01/2017 à 19:28, Oliver Bedford a écrit :

I'm not really happy with the colours dt produces from the raw files of
my Canon EOS M3.

E.g. in a photo taken of someone on a bright day in snow, the OOC jpegs
have more saturation and brightness in the sky, the snow looks cooler
(especially the shadows have more blue), whereas the skin tones look
warmer than in the dt output. BUT: at the same time the gray jacket
remains fairly neutral and doesn't have an unrealistic colour cast.

I've tried to tweak the dt output using velvia, colour zones, tone
curve, base curve, white balance, contrast, brightness & saturation but
failed to get the overall look. There were always side effects (increase
saturation --> gray jacket gets more blueish; adjust white balance -->
gray clouds get a colour cast etc.).

Would the procedure outlined in
http://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/
help in this respect?

Can the IT8 target also be used to calculate an enhanced colour matrix?
This is perhaps of more general value than a LUT(???).

Regards,
Oliver



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[darktable-user] Not happy with the colours

[Oliver Bedford]

I'm not really happy with the colours dt produces from the raw files of
my Canon EOS M3.

E.g. in a photo taken of someone on a bright day in snow, the OOC jpegs
have more saturation and brightness in the sky, the snow looks cooler
(especially the shadows have more blue), whereas the skin tones look
warmer than in the dt output. BUT: at the same time the gray jacket
remains fairly neutral and doesn't have an unrealistic colour cast.

I've tried to tweak the dt output using velvia, colour zones, tone
curve, base curve, white balance, contrast, brightness & saturation but
failed to get the overall look. There were always side effects (increase
saturation --> gray jacket gets more blueish; adjust white balance -->
gray clouds get a colour cast etc.).

Would the procedure outlined in 
http://www.darktable.org/2016/05/colour-manipulation-with-the-colour-checker-lut-module/
help in this respect?

Can the IT8 target also be used to calculate an enhanced colour matrix? 
This is perhaps of more general value than a LUT(???).

Regards,
Oliver



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Re: [darktable-user] Sharpening (round 2)

[darktable]

On Mon, 16 Jan 2017 21:21:54 -0800
"I. Ivanov"  wrote:

>You may want to provide a raw file and xmp so we can test.

https://drive.google.com/file/d/0B7HTmJCO2gG7WDl1NUVxbVQ3aGs/view?usp=sharing

-- 
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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Patrick Shanahan]

* Michael  [01-17-17 09:29]:
> Pleases reply all. I want to know the results of this conversation.
> 
> On Tue, Jan 17, 2017 at 3:09 AM, Jeena  wrote:
> 
> > Hi,
> >
> >> If all we get is before and after images, without any information about
> >> settings, we can only guess at what the problem is...
> >>
> >
> > What kind of settings should I provide? If I knew on which settings to
> > work, I'd be able to test things myself.
> >
> >
> > /Jeena
> > 
> > 
> > darktable user mailing list
> > to unsubscribe send a mail to darktable-user+unsubscribe@lis
> > ts.darktable.org
> >
> >
> 
> 
> -- 
> :-)~MIKE~(-:


you are subscribed to the list, you WILL see the reply if you READ the
list.

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Re: [darktable-user] Sharpening (round 2)

[darktable]

On Tue, 17 Jan 2017 07:23:54 +0100
Remco Viëtor  wrote:

>But what do you do exactly in that extra style you apply on export?

Only frame and watermark

>And what's the exact command you use to mogrify your images?

it was: mogrify -quality "85%" -resize 900x900

but I did some further test. I found that applying a little bit of
sharpening: -unsharp 1.5x1+0.7+0.2 really helps.


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Re: [darktable-user] what graphics card to get?

[Germano Massullo]

I downloaded the following RAWs+XML settings files [1] used by Phoronix
in the benchmarks [2].
Then I forced  my system to use AMDGPU-Pro OpenCL stack even if the
system is using the kernel FOSS drivers[3]

$ LD_LIBRARY_PATH=/opt/amdgpu-pro/lib64 LANG=C darktable -d perf -d dev
-d opencl

and I exported the three images. You can see benchmarks results in
results.txt file.
AMD Phenom X4 965 BE
16 GB RAM
Radeon RX480 8GB RAM
Fedora 25 + darktable 2.2.1

[1]:
http://www.phoronix-test-suite.com/benchmark-files/darktable-bench-assets-1.tar.bz2
[2]:
http://www.phoronix.com/scan.php?page=article=darktable-opencl-gpu=2
[3]: thanks to Michael Born and gladiac IRC user


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[user@machine ~]$ LD_LIBRARY_PATH=/opt/amdgpu-pro/lib64 LANG=C darktable -d 
perf -d dev -d opencl 
[opencl_init] opencl related configuration options:
[opencl_init] 
[opencl_init] opencl: 1
[opencl_init] opencl_library: ''
[opencl_init] opencl_memory_requirement: 768
[opencl_init] opencl_memory_headroom: 300
[opencl_init] opencl_device_priority: '*/!0,*/*/*'
[opencl_init] opencl_size_roundup: 16
[opencl_init] opencl_async_pixelpipe: 0
[opencl_init] opencl_synch_cache: 0
[opencl_init] opencl_number_event_handles: 25
[opencl_init] opencl_micro_nap: 1000
[opencl_init] opencl_use_pinned_memory: 0
[opencl_init] opencl_use_cpu_devices: 0
[opencl_init] opencl_avoid_atomics: 0
[opencl_init] opencl_enable_markesteijn: 1
[opencl_init] 
[opencl_init] found opencl runtime library 'libOpenCL'
[opencl_init] opencl library 'libOpenCL' found on your system and loaded
[opencl_init] found 3 platforms
[opencl_init] found 4 devices
[opencl_init] discarding device 0 `AMD POLARIS10 (DRM 3.8.0 / 
4.9.3-200.fc25.x86_64, LLVM 3.8.0)' due to missing image support.
[opencl_init] discarding CPU device 1 `pthread-AMD Phenom(tm) II X4 965 
Processor'.
[opencl_init] device 2 `Ellesmere' supports image sizes of 16384 x 16384
[opencl_init] device 2 `Ellesmere' allows GPU memory allocations of up to 4048MB
[opencl_init] device 2: Ellesmere 
 GLOBAL_MEM_SIZE:  7821MB
 MAX_WORK_GROUP_SIZE:  256
 MAX_WORK_ITEM_DIMENSIONS: 3
 MAX_WORK_ITEM_SIZES:  [ 256 256 256 ]
 DRIVER_VERSION:   2236.5
 DEVICE_VERSION:   OpenCL 1.2 AMD-APP (2236.5)
[opencl_init] compiling program `demosaic_ppg.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/demosaic_ppg.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/demosaic_ppg.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `atrous.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/atrous.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/atrous.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `basic.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/basic.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/basic.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `blendop.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/blendop.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/blendop.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `highpass.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/highpass.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/highpass.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `nlmeans.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/nlmeans.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/nlmeans.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `gaussian.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/user/.cache/darktable/cached_kernels_for_Ellesmere/gaussian.cl.bin'
[opencl_load_program] successfully loaded program from 

Re: [darktable-user] what graphics card to get?

[Šarūnas]

On 2017-01-16 11:23, Patrick Rudin wrote:
> schrieb Michael Born :
>> I'm running a RX480 with MESA OpenGL (because, I like open source)
>> and the OpenCL libs from the AMDGPU-PRO driver (see
>> http://www.gearsongallium.com/?p=2960 )
>> Darktable works fine with this.
> 
> Wow, very interesting.
> 
> Could you please put these two files in the same directory:
> http://www.mirada.ch/bench.SRW
> http://www.mirada.ch/bench.SRW.xmp
> 
> and post the full output of
> darktable-cli bench.SRW test.jpg --core -d perf -d opencl
> here?

Using OpenCL libraries extracted from the latest amdgpu-pro-16.50
recognizes all the 8GiB of memory in RX 480. There is no fallback to CPU.

-- 
Šarūnas Burdulis
http://math.dartmouth.edu/~sarunas
[opencl_init] opencl related configuration options:
[opencl_init] 
[opencl_init] opencl: 1
[opencl_init] opencl_library: ''
[opencl_init] opencl_memory_requirement: 768
[opencl_init] opencl_memory_headroom: 300
[opencl_init] opencl_device_priority: '*/!0,*/*/*'
[opencl_init] opencl_size_roundup: 16
[opencl_init] opencl_async_pixelpipe: 0
[opencl_init] opencl_synch_cache: 0
[opencl_init] opencl_number_event_handles: 25
[opencl_init] opencl_micro_nap: 1000
[opencl_init] opencl_use_pinned_memory: 0
[opencl_init] opencl_use_cpu_devices: 0
[opencl_init] opencl_avoid_atomics: 0
[opencl_init] opencl_enable_markesteijn: 1
[opencl_init] 
[opencl_init] found opencl runtime library 'libOpenCL'
[opencl_init] opencl library 'libOpenCL' found on your system and loaded
[opencl_init] found 1 platform
[opencl_init] found 2 devices
[opencl_init] device 0 `Ellesmere' supports image sizes of 16384 x 16384
[opencl_init] device 0 `Ellesmere' allows GPU memory allocations of up to 4048MB
[opencl_init] device 0: Ellesmere 
 GLOBAL_MEM_SIZE:  7526MB
 MAX_WORK_GROUP_SIZE:  256
 MAX_WORK_ITEM_DIMENSIONS: 3
 MAX_WORK_ITEM_SIZES:  [ 256 256 256 ]
 DRIVER_VERSION:   2236.5
 DEVICE_VERSION:   OpenCL 1.2 AMD-APP (2236.5)
[opencl_init] compiling program `demosaic_ppg.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/demosaic_ppg.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/demosaic_ppg.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `atrous.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/atrous.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/atrous.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `basic.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/basic.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/basic.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `blendop.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/blendop.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/blendop.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `highpass.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/highpass.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/highpass.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `nlmeans.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/nlmeans.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/nlmeans.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `gaussian.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/gaussian.cl.bin'
[opencl_load_program] successfully loaded program from 
`/usr/share/darktable/kernels/gaussian.cl'
[opencl_build_program] successfully built program
[opencl_build_program] BUILD STATUS: 0
BUILD LOG:

[opencl_init] compiling program `sharpen.cl' ..
[opencl_load_program] loaded cached binary program from file 
`/home/sarunas/.cache/darktable/cached_kernels_for_Ellesmere/sharpen.cl.bin'
[opencl_load_program] successfully loaded program from 

Re: [darktable-user] Exported JPEGS always darker and more satuated

[Michael]

Pleases reply all. I want to know the results of this conversation.

On Tue, Jan 17, 2017 at 3:09 AM, Jeena  wrote:

> Hi,
>
>> If all we get is before and after images, without any information about
>> settings, we can only guess at what the problem is...
>>
>
> What kind of settings should I provide? If I knew on which settings to
> work, I'd be able to test things myself.
>
>
> /Jeena
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscribe@lis
> ts.darktable.org
>
>


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Re: [darktable-user] Sharpening (round 2)

[Tobias Ellinghaus]

Am Dienstag, 17. Januar 2017, 08:16:46 CET schrieb Matthieu Moy:

[...]

> You're viewing your images at a zoom level different from 100%, so you're
> not only benchmarking your rescaling tool (dt Vs mogrify), but also your
> image viewer's rescaling.
> 
> Don't do that. If you want to compare the sharpness of images, always view
> them at 100% zoom.

That.

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Re: [darktable-user] Re: what graphics card to get?

[Colin Adams]

Thanks!

On Tue, 17 Jan 2017 at 11:47  wrote:

> Am 2017-01-17 8:21, schrieb Colin Adams:
>
>
> How do you arrive at that figure?
>
> I did a lot of testing. ;-)
>
> For your reference: Here is the thread I started in 2014:
>
> https://www.mail-archive.com/darktable-devel@lists.sourceforge.net/msg05054.html
>
> In that thread you will find a few of my postings with explanations what I
> tested.
>
> Matthias
>
>


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Re: [darktable-user] Re: what graphics card to get?

[matthias]

Am 2017-01-17 8:21, schrieb Colin Adams:

> How do you arrive at that figure?

I did a lot of testing. ;-) 

For your reference: Here is the thread I started in 2014:
https://www.mail-archive.com/darktable-devel@lists.sourceforge.net/msg05054.html

In that thread you will find a few of my postings with explanations what
I tested. 

Matthias

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Remco Viëtor]

On mardi 17 janvier 2017 09:09:32 CET Jeena wrote:
> Hi,
> 
> > If all we get is before and after images, without any information about
> > settings, we can only guess at what the problem is...
> 
> What kind of settings should I provide? If I knew on which settings to
> work, I'd be able to test things myself.
> 
> /Jeena
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org

Well, the settings in the export section seem the most relevant. And indeed, 
what do you use to view the images? Although if that makes a difference, you 
probably use non-standard export settings anyway: even the most color-agnostic 
viewers can get sRGB images right most of the time.

More precisely, first thing that comes to mind: the export settings:
profile, colorimetric intent (not the most likely, but..), style, and (if you 
use a style) mode.

And if you apply a style on export, what modules does it contain, and do these 
use any kind of masking?




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Re: [darktable-user] what graphics card to get?

[Matthieu Moy]

- Original Message -
> From: "Guillermo Rozas" 
> To: darktable-user@lists.darktable.org
> Sent: Tuesday, January 17, 2017 12:39:22 AM
> Subject: Re: [darktable-user] what graphics card to get?
>> Guillermo Rozas:
>>
>>   * any supported GPU will give massive performance improvement.
>> [contradicts Christian Kanzian above]
> 
> I should have qualified that with 'any supported GPU "that you can buy
> new today"'. I was also assuming that all modules run without problems
> on it.

You would need a benchmark to support this statement. The Phoronix ones and my 
experience says otherwise. See for example benchmarks 2 and 3:

http://www.phoronix.com/scan.php?page=news_item=Darktable-27-Results

GeForce GTX 1050 Ti is a 140 $ card, so not a high-end one but not a crappy one 
either, and it's 50 % slower than a core i7 for these images.

I once gave a try to a ~50 $ graphics card and it was way slower with OpenCL 
than without.

What's true is that you don't need a very high end card to get a massive 
improvement.

-- 
Matthieu Moy
https://www-verimag.imag.fr/~moy/

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Re: [darktable-user] Exported JPEGS always darker and more satuated

[12li...@gadz.org]

For my exported JPEG to match DT preview I had to use gnome image viewer.
Other viewers tested seems not to be color managed.

Regards

Thomas

Le 17 janv. 2017 9:09 AM, "Jeena"  a écrit :

> Hi,
>
>> If all we get is before and after images, without any information about
>> settings, we can only guess at what the problem is...
>>
>
> What kind of settings should I provide? If I knew on which settings to
> work, I'd be able to test things myself.
>
> /Jeena
> 
> 
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Re: [darktable-user] Exported JPEGS always darker and more satuated

[Jeena]

Hi,

If all we get is before and after images, without any information about
settings, we can only guess at what the problem is...


What kind of settings should I provide? If I knew on which settings to 
work, I'd be able to test things myself.


/Jeena

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