Hello,
thanks for the hints!
yes, rawstudio can open the file
(https://www.dropbox.com/s/qo4v5hilv85myjp/snapshot2.jpg).
I am not sure how the image information is stored in the DNG and how it
is processed by darktable. I will try to have a look in imageio_rawspeed.
marcus
On 11/29/2013 02:58 AM, johannes hanika wrote:
> heya,
>
> weird that it appears three times. doing some wrong bayer pattern
> interpolation would mean to oversmooth details, but three copies would
> be some sort of scanline/pixel storage order problem.
>
> anyways, i think some related modules would be:
>
> src/iop/temperature.c (whitebalance)
> src/iop/demosaic.c (demosaicing)
>
> both of them should effectively pass through the data, the first one
> could potentially need to promote it from 1x uint16_t per pixel to 1x
> float per pixel, and the latter one should promote it to 4x
> float/pixel so the rest of the modules can work on color data as they
> expect it.
>
> can you open the image in rawstudio? those three copies look like it's
> opened as an already-demosaiced color image that is wrongly
> interpreted as 3 floats/pixel where we only get one.
>
> might be necessary to adjust src/common/imageio_rawspeed.cc to
> understand that (in this case white balance and demosaic are probably
> already doing the expected passthrough).
>
> cheers,
> jo
>
>
>
> On Thu, Nov 28, 2013 at 1:38 PM, schmidtfrog <[email protected]
> <mailto:[email protected]>> wrote:
>
> Hello (for the first time),
>
> I have tried to open some DNGs from a Leica M Monochrom in Darktable
> (almost latest git master). Seems like some trouble due to the
> fact that
> a Bayer filter is missing in the cam. The actual image appears three
> times (see below screenshot).
>
> https://www.dropbox.com/s/qpy4j481y20rdzk/snapshot1.jpg?n=223299317
>
> Unfortunately I am not familar with darktable functions (had only a
> short look into the sources).
>
> Nevertheless I would be happy if someone has a hint which
> function/files
> are worthwhile to check.
>
> Marcus
>
>
>
>
> ------------------------------------------------------------------------------
> Rapidly troubleshoot problems before they affect your business.
> Most IT
> organizations don't have a clear picture of how application
> performance
> affects their revenue. With AppDynamics, you get 100% visibility
> into your
> Java,.NET, & PHP application. Start your 15-day FREE TRIAL of
> AppDynamics Pro!
>
> http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk
> _______________________________________________
> darktable-devel mailing list
> [email protected]
> <mailto:[email protected]>
> https://lists.sourceforge.net/lists/listinfo/darktable-devel
>
>
------------------------------------------------------------------------------
Rapidly troubleshoot problems before they affect your business. Most IT
organizations don't have a clear picture of how application performance
affects their revenue. With AppDynamics, you get 100% visibility into your
Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro!
http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk
_______________________________________________
darktable-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/darktable-devel
