Hi,

what you show is most likely a out-of-memory situation and I guess you 
are working on a 32-bit system, right?

The equalizer is very memory hungry and it may happen, when processing 
the image tile-wise, that not enough memory can be found for one of the 
tiles. When you run your export after starting darktable in a terminal 
you will likely see an error message in the sense that atrous could not 
allocate its buffers.

Remedy: adjust the tiling related parameters in your configuration. See 
http://www.darktable.org/usermanual/ch07.html.php#d0e7535.

Or even better: move to a 64-bit system.

Ulrich

Am 27.09.2013 00:14, schrieb Matze:
> Hi,
>
> on some of my pictures from my recent holidays unfortunately I get huge
> black squares when I process them with darktable. I suppose this is a
> bug. Strangely this only happens to pictures with portrait orientation.
> The same history stack used on landscape pictures works fine.
>
> I provide a zip-file which contains a sample raw file (Olympus E-620
> orf) together with a matching xmp-file and the jpg this combination
> produces when I export it.
>
> http://www.sendspace.com/file/72l05r
>
> I use profiled denoiser twice, one with Non Local Means, the other with
> wavelet. When I turn off the "Wavelet", the picture comes out fine (but
> with more noise)
>
> Another question I have is, whether it is normal behaviour, that when I
> geotag pictures with a german language darktable, that the exif:Gps...
> values come out like this
>
> exif:GPSLatitude="36,57,428760N"
> exif:GPSLongitude="110,3,571920W"
>
> Commas are used instead of decimal points. When I start darktable with
> english language, then I get points...OK, we germans use commas to
> separate decimals this but I've never seen a computer language to do so.
>
> Greets
> Matthias

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