Re: X-Ray and Colour?
Karl P. Koenig (email@example.com)
Mon, 27 Oct 1997 16:20:16 -0600
> If you take 3 sonsecutive photographs through a red, a blue and a
>green filter, the resulting pictures can be used to reproduce the original
>colours of the subject. Taht's the principle of colour separation as it's
>used in the offset procedure, for example.
> Now I wonder what happened if you took 2 or 3 X-Ray photographs
>through a same object, interposing successively 2 or 3 sheet of different
>opaque materials. Could these radiographs be used to elaborate a coloured
>picture, which would permit the optical distinction of different materials?
> Anybody has proved that? Is there some literature about it?
> And another question: If it does'nt work, why not?
Now that is a very interesting question. I play around making
cyanotypes, e.g., from x rays but have never of course tried color
separations...one would have to get the hospital to allow one to put on
filters....and I wonder if color filters on xrays would work the same as
with regular light specrta. Love to hear about your experience with it.