hi,
thanks for those.
your images starting ~ iso 2500 are a little bit on the dark side. that
means the dark pixels are so many compared to the rest that they dominate
the curve, so the fit for those iso and higher are off a little, the one at
iso 12800 being the worst.
the variance stabilization still kind of works but i'd prefer clean data :)
could you redo the high iso shots by any chance?
cheers,
jo
On Wed, Oct 30, 2013 at 6:51 AM, John N Pham <jhn...@gmail.com> wrote:
> Hi all,
>
> I ran through the profiling instructions posted at
> http://www.darktable.org/2012/12/profiling-sensor-and-photon-noise/
> for the Canon 70D. The generated tarball with the images and PDFs are
> at
> https://drive.google.com/file/d/0B4xh3XYXDK_TYUtua2hfNUl3YVU/edit?usp=sharing
>
> The presets are:
>
> {"Canon EOS 70D iso 100", "Canon", "Canon EOS 70D",
> 100, {8.09556403466354e-06, 3.85186235699285e-06,
> 6.57742816756618e-06}, {6.82546535679493e-08, 4.94067038184825e-08,
> 6.77571653261505e-08}},
> {"Canon EOS 70D iso 125", "Canon", "Canon EOS 70D",
> 125, {9.85692415783346e-06, 4.82618347585054e-06,
> 8.20162352156254e-06}, {1.05180874846527e-07, 7.80648564460554e-08,
> 1.04369517523936e-07}},
> {"Canon EOS 70D iso 160", "Canon", "Canon EOS 70D",
> 160, {1.24900281584965e-05, 6.04388532602985e-06,
> 1.01544264652802e-05}, {6.4763465996339e-08, 4.13873070817594e-08,
> 6.14740811116903e-08}},
> {"Canon EOS 70D iso 200", "Canon", "Canon EOS 70D",
> 200, {1.32051443203522e-05, 6.52256368761239e-06,
> 1.10469437819285e-05}, {7.46981952547114e-08, 4.89879058935299e-08,
> 7.09590205391306e-08}},
> {"Canon EOS 70D iso 250", "Canon", "Canon EOS 70D",
> 250, {1.61550571092224e-05, 8.22819280293611e-06,
> 1.35355379468986e-05}, {1.04214269101993e-07, 7.11430073831034e-08,
> 1.02480222655271e-07}},
> {"Canon EOS 70D iso 320", "Canon", "Canon EOS 70D",
> 320, {2.07756923260921e-05, 1.02117183843331e-05,
> 1.72899355628157e-05}, {8.45735123040985e-08, 5.17123529980444e-08,
> 8.24309714920819e-08}},
> {"Canon EOS 70D iso 400", "Canon", "Canon EOS 70D",
> 400, {2.5981583113321e-05, 1.28167771246659e-05,
> 2.18925977066823e-05}, {1.21628504758282e-07, 7.71558285591852e-08,
> 1.16430090068798e-07}},
> {"Canon EOS 70D iso 500", "Canon", "Canon EOS 70D",
> 500, {3.22569816118096e-05, 1.62910504829003e-05,
> 2.7573467985208e-05}, {1.72522964616297e-07, 1.12992157153189e-07,
> 1.6735886454422e-07}},
> {"Canon EOS 70D iso 640", "Canon", "Canon EOS 70D",
> 640, {4.03375611795735e-05, 2.04607961559402e-05,
> 3.40435411860918e-05}, {1.62479545777786e-07, 9.64221619959175e-08,
> 1.52179536498051e-07}},
> {"Canon EOS 70D iso 800", "Canon", "Canon EOS 70D",
> 800, {5.0055871336037e-05, 2.58310482731143e-05,
> 4.29368421269334e-05}, {2.24707909970447e-07, 1.37989188996053e-07,
> 2.16193615594247e-07}},
> {"Canon EOS 70D iso 1000", "Canon", "Canon EOS 70D",
> 1000, {6.20627134681041e-05, 3.26141823739857e-05,
> 5.42423344471736e-05}, {3.10624543793319e-07, 2.03244520875671e-07,
> 3.10396940712541e-07}},
> {"Canon EOS 70D iso 1250", "Canon", "Canon EOS 70D",
> 1250, {8.01402950098545e-05, 4.13530051468468e-05,
> 6.96858460134015e-05}, {3.40278686407428e-07, 2.10529403358748e-07,
> 3.28733882615039e-07}},
> {"Canon EOS 70D iso 1600", "Canon", "Canon EOS 70D",
> 1600, {0.000102038245264009, 5.3164892184742e-05,
> 8.86173470290253e-05}, {4.69023324956497e-07, 2.95369533664585e-07,
> 4.50695941055561e-07}},
> {"Canon EOS 70D iso 2000", "Canon", "Canon EOS 70D",
> 2000, {0.000132408496564679, 6.97418006100046e-05,
> 0.000115272764474337}, {6.50523432659147e-07, 4.17284122805423e-07,
> 6.11086539356555e-07}},
> {"Canon EOS 70D iso 2500", "Canon", "Canon EOS 70D",
> 2500, {0.00016414138273633, 8.88509623526032e-05,
> 0.00014885092266836}, {7.01504125461925e-07, 4.43294534798975e-07,
> 6.76408784977792e-07}},
> {"Canon EOS 70D iso 3200", "Canon", "Canon EOS 70D",
> 3200, {0.000204980147920998, 0.000114784374924333,
> 0.000186350891594973}, {9.50631493044304e-07, 5.99725776534146e-07,
> 8.98691384303826e-07}},
> {"Canon EOS 70D iso 4000", "Canon", "Canon EOS 70D",
> 4000, {0.000265504619479336, 0.00015498887259856,
> 0.00024664090825267}, {1.25593728222684e-06, 7.99628565330973e-07,
> 1.18370044759619e-06}},
> {"Canon EOS 70D iso 5000", "Canon", "Canon EOS 70D",
> 5000, {0.000335550121544946, 0.000204909348711664,
> 0.000319226092249149}, {1.53442566539378e-06, 9.4931774581696e-07,
> 1.43176498125055e-06}},
> {"Canon EOS 70D iso 6400", "Canon", "Canon EOS 70D",
> 6400, {0.000416242345640607, 0.000265028063120356,
> 0.000386795731234805}, {1.76672582758076e-06, 1.04285246085764e-06,
> 1.59944737225856e-06}},
> {"Canon EOS 70D iso 12800", "Canon", "Canon EOS 70D",
> 12800, {0.000745769939957314, 0.000652523768823219,
> 0.000804505906290384}, {3.82719254704406e-06, 1.88118061825709e-06,
> 3.44469873981656e-06}},
>
>
> Hope this is useful, and thanks for the good work on Darktable! :)
>
>
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