Cone and melanopsin contributions to human brightness estimation: Reply

Our analytical description of full-field brightness perception data [J. Opt. Soc. Am. A 35, B19-B25 (2018)] with contributions from cone luminance and melanopsin expressing intrinsically photosensitive retinal ganglion cells has been extended [J. Opt. Soc. Am. A 35, 1780 (2018)] to include S-cones through a blue-yellow opponent channel. We welcome this reanalysis and provide a few remarks on the approach.