Regarding the McCree curve, if my memory serves, in one of Dr. Bugbee’s videos at Utah State, he discusses an interesting realization that his students came upon while studying McCree’s work. I don’t recall exactly the realization or which video includes his comments on McCree’s work. But I remember that the realization was new, and I found it interesting. I will try to find it again and post it here.
If someone knows what I’m referring to please share.