Documentation

[Roger-Breton]

In demo1.m, you wrote :

%% data preparation

% load DSG color checker's spectral reflectance data
% The spectral reflectance data was measured by a X-Rite SP64 for the color checkers at hand.
% The data was sampled within 400nm-700nm wavelength range, at 5nm interval.
% Measuring data: 2017/5/9'

I also have an X-Rote SP64 and it's important to note that its sampling rate is not 5nm but 10nm.
So you may have used some kind of "interpolation" to arrive at the 5nm data.

This is not a criticism. I appreciate your hard work and generosity.