On vendredi 24 avril 2020 15:28:24 CEST Peter Schlaufer wrote:
> Hello
>
> I wanted to try out, what the demosaicing module was doing to one of my
> pictures, but I could not do anything. I git the message, that demosaicing
> does only work with RAW files, they are however DNG files, because I
> process my RAF files before with Iridient X Transformer. Is this of
> importance?
In short: yes, as your DNG files are *not* raw files.
It says on the Iridient web page that "X Transformer is a utility that can be
used to convert Fujifilm RAF images to DNG format using Iridient Digital's
high quality RAW processing algorithms."
A bit later they list the RAW processing stages that can be applied, the
first one mentioned is
"Interpolation or demosaic processing.
This transforms the camera sensor's X-Trans or Bayer color filter
information to produce a full color RGB image. This processing is
always applied by Iridient X-Transformer and cannot be disabled or
undone."
So your particular DNG files aren't raw files, they do not contain the raw
data to be demosaiced.
That means that darktable's demosaic module has nothing to work on, and will
*not* be enabled (in short, it won't do anything to your pictures)
But have you tried using the native RAF files in darktable?
Remco
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