Thanks for the advice, it works!
The pink and green motion artifacts are very tricky to avoid with any
HDR merging tool that operates in raw data, I know. For such images is
better to develop the raw files and merge the demosaiced images.
Guillermo Luijk's ZeroNoise has some good antighosting tools.
Thanks again.
Josep V. Moragues
El 28/10/14 a les 08:16, johannes hanika ha escrit:
works for me:
http://picpaste.com/2014-10-28-201346_1920x1080_scrot-1mSLfEXj.png
it's only that our float dng are normalised to clipping at 1.0, and
these have crazy high values in them. so you need to disable the
highlight reconstruction module (see screenshot) and stop down by like
15ev (right click and type in the respective slider in the exposure
module, the range will dynamically expand).
cheers,
jo
On Tue, Oct 28, 2014 at 7:48 AM, Josep Vicenç Moragues Pastor
<jose...@arrakis.es <mailto:jose...@arrakis.es>> wrote:
I have the same issue with CeroNoice, by A1ex, from the
MagicLantern team.
(see http://www.magiclantern.fm/forum/index.php?topic=9581.0)
It's a similar HDR merging utility, also based in Zeronoise
technique. CeroNoice outputs a 32-bit float DNG, and Darktable
(current Git version) cannot open these files.
A1ex says that 32-bit float DNG is necessary to allow enough
dynamic range with extreme bracketed series. And this needs
Adobe's DNG 1.4 SDK.
This is a sample 32-bit float DNG HDR image generated by CeroNoice:
https://www.dropbox.com/s/4n1ir60r9r8gpzb/ceronoice_HDR_32bit_float.dng?dl=0
Warning, it's a huge file (62 Mb). I can't open it with Darktable,
but I can successfully process it with A1ex's own patched version
of UFRaw.
This is how it looks in jpg:
https://www.dropbox.com/s/mg3kyxlxgj3qhz9/out.jpg?dl=0
There are pink and green artifacts in the water surface, but this
are motion related issues (as discussed here:
http://www.magiclantern.fm/forum/index.php?topic=9581.msg126227#msg126227).
Darktable's own HDR merging tool also produces similar artifacts
when applied to the same original .cr2 files.
Josep V. Moragues
El 26/10/14 a les 19:17, johannes hanika ha escrit:
we already read the floating point dng that our hdr merger
creates.. if the files aren't too different from that it should
just work or need minor adjustments.
-jo
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