Converting CIELab to Density?

Is it passable to convert CIELab to Density and where to find the formula?
Thanks for help

Hi!
I’m going to point you again to the Lindbloom website. You would look under “Calc” for the Companding Calculator:
brucelindbloom.com

I got it and thanks

Apologize for replyng to a really old thread but, it’s relative to what I’m doing. Does any one know how the terms Visual, Type 1, and Type 2 Densities relate to the more common terms in printing of Absolute and Relative density. In printing Absolute simply means a ratio against the full spectrum of the light source. Relative means a ratio against the substrate being printed on.