Using the model of Machado, Oliveira, & Fernandes, this procedure returns how color would be perceived by a viewer with color vision deficiency of the specified type and severity.

This is useful for testing color schemes for suitability for viewers with CVD.

$\mathrm{with}\left(\mathrm{ColorTools}\right)\:$

$P≔\mathrm{GetPalette}\left(''CVD''\right)$

$P≔⟨Palette\; CVD:BlueOrangePale\; GreenPurpleYellowRedLight\; BluePale\; PurpleGreenGreen\; BluePale\; OrangeLight\; Green\; Blue⟩$

$\mathrm{CVDSimulation}\left(P\left[1\right]\right)$

$⟨RGB\; :\; 0.125\; 0.275\; 0.775⟩$

$\mathrm{seq}\left(\mathrm{CVDSimulation}\left(P\left[i\right]\,''protanomaly''\,75\right)\,i=1..12\right)$

$⟨RGB\; :\; 0.175\; 0.35\; 0.803⟩,⟨RGB\; :\; 0.646\; 0.513\; 0.304⟩,⟨RGB\; :\; 0.961\; 0.904\; 0.494⟩,⟨RGB\; :\; 0.107\; 0.17\; 0.645⟩,⟨RGB\; :\; 1\; 0.889\; 0.625⟩,⟨RGB\; :\; 0.186\; 0.123\; 0.239⟩,⟨RGB\; :\; 0.384\; 0.588\; 0.998⟩,⟨RGB\; :\; 0.529\; 0.567\; 0.996⟩,⟨RGB\; :\; 0.575\; 0.605\; 0.344⟩,⟨RGB\; :\; 0.293\; 0.391\; 0.516⟩,⟨RGB\; :\; 0.952\; 0.898\; 0.739⟩,⟨RGB\; :\; 0.601\; 0.746\; 0.869⟩$

$\mathrm{CVDSimulation}\left(P\left[1\right]\,''tritanomaly''\,\mathrm{raw}\right)\ne \mathrm{CVDSimulation}\left(P\left[1\right]\,''tritanomaly''\right)$

$⟨*RGB*\; :\; -0.167\; 0.444\; 0.482⟩\ne ⟨RGB\; :\; -0.00191\; 0.44\; 0.474⟩$

Matrices for simulating anomalous color vision from: Machado, Oliveira, & Fernandes (2009). A Physiologically-based Model for Simulation of Color Vision Deficiency. doi: 10.1109/TVCG.2009.113, http://www.inf.ufrgs.br/~oliveira/pubs_files/CVD_Simulation/CVD_Simulation.html

The ColorTools[CVDSimulation] command was introduced in Maple 2020.

For more information on Maple 2020 changes, see Updates in Maple 2020.