Run times. Time complexity is O (1) for stagger. No clue for igv. But its
not perceptible slower than ppg or amaze on my first generation mobile i7
using OpenMP.
Best,
Gert
Op 26 feb. 2014 14:16 schreef "johannes hanika" <hana...@gmail.com>:
> hey,
>
> nice, sounds like you're having fun with those demosaicers..
>
> could you upload a small set of comparison images illustrating why you
> think one algo is better than the other, just so we all know what you're
> talking about? preferably with run times.
>
> doxygen, really? do people still do that? the best documentation you'll
> get is #darktable on freenode.
>
> -jo
>
>
>
> On Wed, Feb 26, 2014 at 12:00 PM, Gert van der Plas - Schrama <
> gertvdp...@gmail.com> wrote:
>
>> Hi,
>>
>> I branched darktable on github and created a branch named
>> demosaic-algos for version 1.5. I've added two 'experimental' demosaic
>> codes for high noise situations. I have not yet added border
>> interpolation and plan to drop the unused pixels to prevent
>> differences in demosaic rendering. IGV is pretty powerful.
>>
>> - igv with OpenMP support from rawtherapee. Suitable for high noise,
>> i.e. for the Sony NEX-C3 suitable for 1600 iso, 3200 iso and 6400 iso,
>> about 90 minutes work to port.
>> - stagger with OpenMP support, home-brewed. Suitable for very high
>> noise, i.e. for the Sony NEX-C3, under exposed 6400 and 12800 iso
>> shots.
>>
>> I might port more demosaic codes from RawTherapee but amaze and igv
>> seem to give the best results for my camera. Most likely I am
>> interested in adding newer more advanced demosaic codes that perform
>> better than amaze.
>>
>> People who are interested in the algorithms and want to give feedback
>> can go here and pick a commit that is not mentioned to be broken.
>>
>> https://github.com/digitalmole/darktable/tree/demosaic-algos
>>
>> some things one should now:
>>
>> - Currently there is no border interpolation, border pixels are simply
>> as allocated from memory.
>> - Stagger. It does not smooth color noise, it leaves it to the
>> profiled denoising module to remove them. The edge threshold slider is
>> used to enable 'green edge awareness'. Slide it to the left to
>> increase edge-awareness and increase noise. About 0.2-0.3 are nice
>> values for the Sony NEX.
>>
>> Feedback and advice is welcome. Particular on any pitfalls I might
>> encounter.
>>
>> Cheers,
>>
>> Gert
>>
>>
>> --
>> Panta Rhei -- Life is a dance
>>
>>
>> ------------------------------------------------------------------------------
>> Flow-based real-time traffic analytics software. Cisco certified tool.
>> Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
>> Customize your own dashboards, set traffic alerts and generate reports.
>> Network behavioral analysis & security monitoring. All-in-one tool.
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
>> _______________________________________________
>> darktable-devel mailing list
>> darktable-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/darktable-devel
>>
>
>
------------------------------------------------------------------------------
Flow-based real-time traffic analytics software. Cisco certified tool.
Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer
Customize your own dashboards, set traffic alerts and generate reports.
Network behavioral analysis & security monitoring. All-in-one tool.
http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk
_______________________________________________
darktable-devel mailing list
darktable-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/darktable-devel
