Hi Estel,

my camera-ui uses maemos camera library (gdigicam/gstreamer) for
creating the image. It is the camera driver which generates
the preview image and the final image.

When raw-mode is enabled, I grab the raw imagedata, create
a dng file and use the preview image from the camera driver
as the thumbnail. So, the thumbnail image is the post processed
image from the camera driver, that's the why it is looking
different than the raw image.

Taking the preview image as the thumbnail image for the raw dng
file isn't the best way. But it was simpler than writing my own
code for generating a thumbnail image. The way nokia post processed
the image data is part of the closed source components and
the parameter are undocumented or unknown.