BTW, PatchTool from Babelcolor simplifies the measurement, manipulation,
writing out of files etc which you need for creating and measuring targets
and feeding it ro random software in Image or CGATS form. Excellent
software, I recommend it.
Edmund
ᐧ
On Mon, Oct 17, 2016 at 4:08 PM, edmund ronald <edmundronald@xxxxxxxxx>
wrote:
If one isn't too picky about quality, one can also just go online and look
for Raw test chart shots by one of those test sites ... Imaging Resource?
If one is pickier, one can reverse engineer one's favorite Raw processor
... the trick can be to reverse the profile, and then run forward through
another profiler. Or so I remember from ten years ago when I was playing
this game and wrote scripts to do it.
I'm quite sure there are people on list who know how to do all these
things and are much smarter than me, I've talked with them :)
A friend of mine who built a rep around accurate scanner profiling simply
made his own target by sticking random stuff on a backing and using an
instrument to measure it - I think that owning a ColorMunki spectro is
probably sufficient for this, and justifiable in many ways, and can lead to
better profiles than any purchased target, because the sample spectra can
be truly linearly independent which is not the case eg. for Colorcheckers.
Edmund
ᐧ
On Mon, Oct 17, 2016 at 3:54 PM, Dp Mailit <dp.mailit@xxxxxxxxx> wrote:
it looks like RT profiles (and profiles from any raw processor thatuses dcraw to decode the raw files) in fact do use matrices contained in
the dcraw adobe_coeff table.
one can download Adobe DNG converter, install it and use dcp profiles
supplied w/ it in rawtherapee... Adobe Standard and (if/where available)
Camera Matching... one does not need to limit himself/herself to profiles
supplied w/ rawtherapee distribution... unless of cours he/she does not
want to do this - then of course - use supplied, build your own, get
elsewhere (people share their profiles all the time) or purchase from
somebody...
