Below is a page I stumbled across doing a search on vcgt curves.
http://www.lightillusion.com/display_setup.htmThis is new to me. I've never seen an approach to display calibration done quite like the author describes. He seems to be quite knowledgeable about ICC standards. He advocates the vcgt curve calibration as he refers to as (1D) isn't enough to get accurate color because it leaves out the 3D matrice portion of the profile that controls hue/saturation.
I'm assuming he services the video/movie film industry as opposed to computer/video card ICC driven color managed way of doing things.
Thought I'ld post it because it offers an alternate perspective on the rest of the imaging industry I've been curious about with concerns to the way things work for computerized ICC color managed imaging.
Do you think this author makes sense or is he missing or misinterpreting information on the subject? It was an interesting read from a different perspective for me at least.