X-trans compressed -- status?

Software darktable
11

Thanks Roman
I’ll wait patiently for the next release.

12

I’m guessing you are talking about X-trans compressed -- status? - #6 by LebedevRI ?
Can you quote the misleading part? I never stated anything about releases in there.

13

Didn’t know that was not released yet. My fault.

14

Hi Roman. I followed instructions to compile using git. Compiled ok, but the fujifilm X-E3 is not in the rawseed database. Here is the error message

shum@debian:~/darktable/build$ darktable
RawSpeed:Unable to find camera in database: ‘FUJIFILM’ ‘X-E3’ ‘’
Please consider providing samples on https://raw.pixls.us/, thanks!
[rawspeed] (DSCF7076.RAF) Camera ‘FUJIFILM’ ‘X-E3’, mode ‘’ not supported, and not allowed to guess. Sorry.
[temperature] failed to read camera white balance information from DSCF7076.RAF'! [colorin] FUJIFILM X-E3’ color matrix not found!
[colorin] FUJIFILM X-E3' color matrix not found! [colorin] FUJIFILM X-E3’ color matrix not found!
[temperature] failed to read camera white balance information from DSCF7076.RAF'! [colorin] FUJIFILM X-E3’ color matrix not found!
[colorin] FUJIFILM X-E3' color matrix not found! [colorin] FUJIFILM X-E3’ color matrix not found!
[temperature] failed to read camera white balance information from DSCF7076.RAF'! [colorin] FUJIFILM X-E3’ color matrix not found!
[colorin] FUJIFILM X-E3' color matrix not found! [colorin] FUJIFILM X-E3’ color matrix not found!
RawSpeed:Unable to find camera in database: ‘FUJIFILM’ ‘X-E3’ ‘’
Please consider providing samples on https://raw.pixls.us/, thanks!
[rawspeed] (DSCF7075.RAF) Camera ‘FUJIFILM’ ‘X-E3’, mode ‘’ not supported, and not allowed to guess. Sorry.
[temperature] failed to read camera white balance information from DSCF7075.RAF'! [temperature] FUJIFILM X-E3’ color matrix not found for image
[temperature] failed to read camera white balance information from `DSCF7075.RAF’!

15

Works fine here.
I guess you either did not build the git master of darktable,
or did something wrong with rawspeed submodule update.

Building
Note that rawspeed is tracked via a git submodule, so after checking-out the darktable, you need to update/checkout rawspeed,

git submodule init
git submodule update
16

Hi Roman. Thanks for reply. I followed the instructions in the manual. After ./build.sh and cd build && sudo make install commands, it was completed with no errors. But I cannot find any executable in /opt/darktable. (previously I used a simple darktable command which would bring me to version 2.2.3 with errors of no X-E3). I ended up using
shum@debian:~/darktable/build$ /opt/darktable/bin/darktable
It runs and show version 2.3.0+1080…and opens my compressed .raf files. :grinning:
So, I need to start it from terminal and close it afterwards. Is there a simple way to create an executable so I can run it from gnome desktop?

17

By default it installs into /opt/darktable, which you should create first, and make it writable by your user, so no sudo is needed for the make install

So which is it, I cannot find any executable in /opt/darktable, or I ended up using /opt/darktable/bin/darktable? :slight_smile:

Cool!

No clue about gnome, i don’t use that. I guess something along the lines of .desktop - How can I create launchers on my desktop? - Ask Ubuntu

18

Thanks Roman. I managed to just change my current v2.2.5 launcher to the new version. Working great. Thanks for your help and patience. Now I have to tackle lensfun to include Fuji X-E3.

19

Hi Roman, I have another question or observation of the git version on Fuji X-E3.
The new git version opens the X-E3 file, but when I zoom to 100%, the image has jagged lines all over. If I switch to jpeg, its all clear and sharp. I tried all the demosaic options but the same effect. Maybe these demosaic methods are not suitable for 24mp sensors?

20

Do you mean this blocky stuff? It’s not caused by the demosaicer. Tested with rt. Left is demosaiced, right is not demosaiced:

grafik
grafik1920×1080 3.83 MB

21

here is an example, processed .raf file, exported to jpeg. Please zoom to 100%

DSCF6956
DSCF69566024×4008 44 MB

22

If you can provide the raw file I can check in RT without demosaicer

24

FWIW if i convert that compressed RAF to uncompressed DNG, i see the exact same checkboard pattern.
So it’s unlikely to be incorrect CFA, too. And i still see it with demosaic off.
It’s likely either inherent “X-Trans moire”, or inherent compression algorithm deficiency.

darktable output with monochrome demosaic, from ADC uncompressed DNG:

0001_X-E3
0001_X-E36000×4000 18.8 MB

25

Here is the .raf file
DSCF6956.RAF (29.4 MB)

26

Thanks for the .raf. Here’s the default processed jpg from RT. I didn’t try without demosaic, because the artifacts are not present in the rt demosaiced version.

DSCF6956
DSCF69566018×4018 9.61 MB

27

I am sorry. What does it mean. The jpeg zoomed in shows the same jagged lines (if you zoom into the rope handle). None of these show in the original jpeg file which is nice and sharp (I took fine jpeg + raf).
Btw, I used LR CC (on my iPad) and opened the same .raf file, and the photo looks fine.

28

Ok, seems we talk about different issues:

Thats what I see when I zoom into your jpeg (screenshot from zoomed in area in Firefox):

xtrans01
xtrans011024×665 1.33 MB

And thats what I see when I zoom into the jpeg generated by rt (screenshot from zoomed in area in Firefox):

xtrans02
xtrans02991×785 937 KB

29

Ok, now i got it. It was indeed a CFA problem.
Edit: looked through all the compressed raw samples for all 6 fuji cameras, it seems this was an isolated incident.

1 Like
30

https://github.com/darktable-org/darktable/commit/a6d21835a7644007ef7a6080c2689a9d1c24ebb5

1 Like
31

Wow, that is fast action. I’ll recompile and try it again. Thanks.