Regards,
Jacob Nederend
M.Sc. Candidate | Department of Plant Agriculture | University of Guelph |
Guelph, ON Canada |
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 15 Jun 2016 10:57:47 +0200
> From: Torsten Bronger <bron...@physik.rwth-aachen.de>
> Subject: Re: [Lensfun-users] calibrate.py produces no vignetting or
> tca in xml
> To: lensfun-users@lists.sourceforge.net
> Message-ID: <87k2hq6d84....@physik.rwth-aachen.de>
> Content-Type: text/plain; charset=iso-8859-1
>
> Hall?chen!
>
> Jacob Nederend writes:
>
> > [...]
> >
> > python calibrate.py generates a lensfun.xml but there are only
> > 'ptlens' parameters in it.
>
> You mean that vignetting and/or TCA correction data is missing?
>
> > I have tried RAW (.NEF), TIFF (generated using calibrate.py by
> > placing all test images in /distortion) and JPEG images and none
> > seem to work.
>
> RAW is the way to go anyway.
>
> > If I try to calibrate using JPEGs in the vignetting and distortion
> folders
> > (tca is empty because it is not my main concern), I get the error:
> >
> > Traceback (most recent call last):
> > File "calibrate.py", line 429, in <module>
> > vignetting_db_entries[exif_data] = result.get()
> > File "/usr/lib/python2.7/multiprocessing/pool.py", line 558, in get
> > raise self._value
> > NameError: global name 'FileNotFoundError' is not defined.
>
> This script needs Python 3.
>
> > If I do the same but run 'python3.4 calibrate.py' I get even more errors:
> > Traceback (most recent call last):
> > File "/usr/lib/python3.4/multiprocessing/pool.py", line 119, in worker
> > result = (True, func(*args, **kwds))
> > File "/usr/lib/python3.4/subprocess.py", line 620, in check_output
> > raise CalledProcessError(retcode, process.args, output=output)
> > subprocess.CalledProcessError: Command '['convert', 'tiff:-', '-set'.
> > 'colorspace', 'RGB', '-resize', '250', 'pgm:-']' returned non-zero exit
> > status 1
> >
> > The above exception was the direct cause of the following exception:
> > File "calibrate.py", line 429, in <module>
> > vignetting_db_entries[exif_data] = result.get()
> > File "/usr/lib/python2.7/multiprocessing/pool.py", line 558, in get
> > raise self._value
> > subprocess.CalledProcessError: Command '['convert', 'tiff:-', '-set'.
> > 'colorspace', 'RGB', '-resize', '250', 'pgm:-']' returned non-zero exit
> > status 1
>
> Hard to tell what is going wrong here. You max remove the
> stderr=open(os.devnull, "w") and see what's printed on the console.
>
> > Furthermore, I wanted to correct the vignetting test images in
> > DigiKam using the generated .xml but the program refuses to load
> > the .xml when I place it in either /usr/share/lensfun or
> > /usr/local.share/lensfun/update_1.
>
> What is the error message? Does DigiKam complain or Lensfun on the
> console?
>
> > If I edit the mil-nikon.xml (in either directory) with my lens, I
> > actually lose the ability to detect my camera in DigiKam.
>
> Can you post a diff with what you changed?
>
> > Instead of Nikon 1 J3, it gives me Nikon D1. The exiv2 forum told
> > me this is likely due to a Nikon MakerTag issue based on its
> > output, but I hope to get it working even if I don't have
> > auto-detection.
>
> But a failing autodetection should also fail before your changes.
>
> Tsch?,
> Torsten.
>
> --
> Torsten Bronger Jabber ID: torsten.bron...@jabber.rwth-aachen.de
>
>
> --------------------------------------------------------------------------------------------
I have since moved on to Lightroom and lab calibrated equipment but can try
to do this over again. The MakerTag issue is probably not solvable based on
the response from the Exiv2 forum.
Jacob
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