That's somehow a relief to know that custom basecurves isn't going to solve the dynamic range problem. Helpful for now to just accumulate knowledge about what works... The levels solution does seems good, and simple. Though it helps to set a "lightness" blend, or else the colors come out oversaturated?
Certainly all these solutions are some combination of upping the exposure then compressing the highlights. It might be overkill but appealing to invent an iop to do this as early as possible in the processing pipeline, perhaps even before the exposure module. But interesting that the modules which seem to work (levels/zonesystem/globaltonemap) come much later, and work in Lab space. It sounds as though other cameras have a similar dynamic range modes which are not supported in Darktable after careful developer consideration, hence Fuji dynamic range support could easily meet a similar fate...? On Tue, May 20, 2014, at 03:22 PM, David Vincent-Jones wrote: > On Tuesday, May 20, 2014 09:26 James E. Marca wrote: > > On Tue, May 20, 2014 at 11:08:33AM +0200, David Vincent-Jones wrote: > > > Rather than using 'global tonemap' as I had earlier tried I am now finding > > > much better results through the use of the 'levels' module and then > > > pulling the mid-tone down (to the left) as needed. > > > > > > This appears to be providing the best extended shoulder range and does not > > > incur the noise premium that I was previously seeing. > > > > Sorry if I'm late to this discussion, but I tried creating custom base > > I have been comfortable with the Fuji X100s base curve .... and I am > using as > a standard (locked in) the 'Markesteijn 3-pass' demosaic routine. > > The noise appears greatly reduced. > > David > > curves for DR-400 shots using dt-curve-tool and analyzing a stack of > > similar DR-400 pictures, but I'm not happy with the result, seeing > > both noise artifacts in the shadows and a loss of color in the higher > > end, esp in the skin tones. > > > > Thanks for the pointer to the levels module. I will try that tonight. > > > > > Possibly a standard setting in the 'zone system' would also be doable but > > > would probably be more fussy when making individual image adjustments. > > > > I played with zone system as well but didn't understand it well enough > > to get good results from it. > > > > > > Also, I've never liked the inaccuracy of dragging sliders and curves > > around. > > > > Regards, > > James > > > > > David > > > > ---------------------------------------------------------------------------- > > -- "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > > Instantly run your Selenium tests across 300+ browser/OS combos. > > Get unparalleled scalability from the best Selenium testing platform > > available Simple to use. Nothing to install. Get started now for free." > > http://p.sf.net/sfu/SauceLabs > > _______________________________________________ > > darktable-devel mailing list > > darktable-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/darktable-devel > > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. > Get unparalleled scalability from the best Selenium testing platform > available > Simple to use. Nothing to install. Get started now for free." > http://p.sf.net/sfu/SauceLabs > _______________________________________________ > darktable-devel mailing list > darktable-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/darktable-devel ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ darktable-devel mailing list darktable-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/darktable-devel
