[argyllcms] Re: Fluorescent inks and i1Pro 2
- From: Ben Goren <ben@xxxxxxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Thu, 22 Feb 2018 11:22:04 -0700
On Feb 22, 2018, at 4:56 AM, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote:
If you have a telespectroradiometer of some type
To this, I might add...you can create a large-aperture spectroscope using some
of that novelty diffraction grating film that's used for rainbow glasses.
Amazon has large sheets / rolls for darned cheap. You'll want to be careful
with the geometry so as to project the spectrum against a light trap.
Photograph said projected spectrum and you've got, essentially, a
telespectroradiometer...but you're going to need a lot of time and ingenuity to
calibrate it. And some sort of reference standard, another tool you can
calibrate it against (an i1 Pro will work), that sort of thing.
That's a very hand-wavey description. Full instructions...would take a lot.
The good news is that nothing involved is particularly advanced. Most of it is
Newton, and most of the rest is the same matrix math used in all color science.
A spreadsheet is the most sophisticated calculating tool you need.
The better news is that, if you tackle this project, you'll give yourself a
pretty good crash course in color science.
The bad news...is that it might take you the better part of a semester just to
get to the point that you're ready to make measurements....
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