Lab: Humans cones spectrum response

Vitaliy_Kiselev

Simplified version looks like this:

based on responses like this CIE standard observed models are made https://en.wikipedia.org/wiki/CIE_1931_color_space

Reality more like this

Last slide is from http://www.personal-view.com/talks/discussion/10664/rec-2020-finally-rec-709-is-getting-the-boot/p1 topic.

Variation actually represents serious issue for new color spaces like Rec 2020.

Vitaliy_Kiselev

Fun fact

CIE XYZ is based on 17 Standard Observers - 10 by Wright, 7 by Guild

Seriously.

MaxDepth

Very interesting. Post more such things.

Vitaliy_Kiselev

The CIE established a Technical Committee in 1936 with the goal of creating a “fundamental chromaticity diagram of which the coordinates correspond to physiologically significant axes,” and in 2006 the committee produced the CIE 170-1 standard, with new Color Matching Functions that improved greatly on the 1931 Standard Observer

This guys are fast.

Howdy, Stranger!

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