Converting typical Matrix / TRC RGB profiles to CIE Lab

Not 100% clear on the documentation?

I want to create a cform that converts from RGB to Lab out of a typical 'Matrix/TRC' profile. So far, I plan to use this code to accomplish this :

P3Prof = iccread('Display P3.icm');

cform_XYZP3 = makecform('mattrc',P3Prof,'Direction','forward') % Output is XYZ

cform_LabP3 = makecform('xyz2lab');

LabP3 = applycform(rgb,cform_LabP3);

Does that make any sense?

Answer 1

[Roger Breton]

The above code works just fine :-)

Thank you!