[argyllcms] Re: Camera profiling with bracketing
- From: Iliah Borg <ib@xxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sat, 12 Mar 2011 22:46:11 -0500
Dear Graeme,
>> Such shots are done using tripod and remote, so if user (or scanin) samples
>> one chart
>> all other locations are the same. I prefer manual sampling (like it is done
>> in RPP)
>> because that allows to avoid any imperfections right from the start. It
>> seems that
>> profiles with manual sampling go easy to 6dE max, while with scanin they are
>> usually
>> about 12 to 20 dE.
>
> I'd be interested to have a sample that shows such a difference, as scanin
> should work better than that.
From manual sampling using RPP:
STDEV_R STDEV_G STDEV_B
0.36 0.31 0.32
0.34 0.22 0.27
0.36 0.24 0.27
0.38 0.28 0.27
0.41 0.23 0.24
0.38 0.2 0.24
0.33 0.26 0.29
0.36 0.26 0.26
0.34 0.28 0.3
0.39 0.28 0.37
0.39 0.2 0.28
0.32 0.22 0.31
0.44 0.32 0.35
0.42 0.23 0.28
0.38 0.29 0.3
0.32 0.2 0.31
0.35 0.27 0.27
0.38 0.23 0.25
0.26 0.18 0.2
0.29 0.17 0.2
0.35 0.22 0.25
0.35 0.26 0.3
0.42 0.29 0.32
0.48 0.33 0.3
Sampling with scanin
STDEV_R STDEV_G STDEV_B
0.58 0.64 0.66
0.56 0.59 0.61
0.62 0.61 0.59
0.62 0.61 0.7
0.62 0.6 0.56
0.63 0.56 0.58
0.54 0.59 0.7
0.64 0.6 0.55
0.53 0.59 0.57
0.6 0.6 0.59
0.59 0.57 0.65
0.57 0.57 0.65
0.72 0.67 0.62
0.63 0.6 0.65
0.53 0.61 0.63
0.52 0.55 0.64
0.56 0.61 0.57
0.67 0.61 0.56
0.45 0.46 0.48
0.51 0.52 0.51
0.58 0.58 0.58
0.61 0.61 0.6
0.62 0.63 0.61
0.68 0.68 0.67
--
Iliah Borg
ib@xxxxxxxxxxx
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