Datacolor User to User Support Group.

Is it possible to use the spectrocolorimeter to directly measure color 
values from an original art work (watercolor, oil, acrylic) and relate 
them to a digital capture of that piece for the purposes of color matching?

For example can RGB values from the original be measured or derived - 
then I can compare that to the RGB values of that section of the digital 
capture and determine how far off it is...

I see from the documentation that Lab values can be measured, does that 
accomplish the same thing in some way?

Thanks for any guidance on this!

Ken