Alberto,
Other findings are:
- the absorption of the secondary colours (R, G, B) is not the sum of the
absorption of the primary (Y, M, C) ones like one would assume. This happens
with all the wavelengths and as to do with the printer colour management and
perhaps with the particular inkset including light M and C.
I think this could be because when you print Green, it is not the same as printing Yellow and printing Cyan in terms of the amount of Yellow and Cyan that gets laid down. Green has less Yellow and less Cyan than when you print the two separately.
- the absorption of a colour reduced by 50% (e.g. for Y: 255, 128, 255) is
as low as about 15-20%. This is really puzzling to me, and I have no
explanation.
While the values in RGB are Linear, the actual densities are not.
Alberto
--
Best Wishes,
Mark Nelson
On May 3, 2009, at 12:25:41 AM, "Alberto Novo" <alt.list@albertonovo.it> wrote:
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