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

On Mon, Oct 27, 2014 at 7:06 AM, Pedro Côrte-Real <pe...@pedrocr.net <mailto:pe...@pedrocr.net>> wrote:

    If it's a standard DNG it shouldn't be too hard. Could you please
    submit a bug report with an attached example file?

    http://www.darktable.org/redmine/projects/darktable/issues/new

    Thanks,

    Pedro

    On Sun, Oct 26, 2014 at 9:56 AM, Bert Blockx
    <bert.blo...@gmail.com <mailto:bert.blo...@gmail.com>> wrote:
    > Hello,I have the same issue with CeroNoice, by A1ex, from the
    MagicLantern team.

        (see http://www.magiclantern.fm/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. Moraguesforum/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
    >
    > Is it possible to implement the HDRMerge DNG-format?
    > http://jcelaya.github.io/hdrmerge/
    > https://github.com/jcelaya/hdrmerge
    > This program is very good at merging a set of exposure bracketed
    RAW-files
    > by combining the best exposed regions from each RAW-file. (Zero
    Noise
    > technique)
    > The program aligns the pictures so you can use handheld pictures.
    > You can manualy adjust the result to remove unwanted ghosting
    effects (mask
    > painting).
    > It doesn't do tone mapping. The result of the program is a
    DNG-file with
    > extended dynamic range, very little noise and more detail.
    >
    > Raw development should be done with a raw developer (Darktable?)
    >
    > I am unable to open these DNG files in Darktable 1.4.2 (stable) and
    > Darktable 1.5+2075~g09042e3 (unstable).
    > The unstable version complains about camera whitebalance.
    >
    >
    > The latest version of RawTherapee (v4.2.0) can read these files.
    > http://rawtherapee.com/forum/viewtopic.php?f=1&t=5426
    >
    > Best regards,
    >   Bert
    >
    >
    
------------------------------------------------------------------------------
    >
    > _______________________________________________
    > darktable-devel mailing listI 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
    > darktable-devel@lists.sourceforge.net
    <mailto:darktable-devel@lists.sourceforge.net>
    > https://lists.sourceforge.net/lists/listinfo/darktable-devel
    >

    
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