theoreticalRGB: Theoretical RGB Cameras - BT.709.RGB and Adobe.RGB
Description
[object Object],[object Object]format
Both are colorSpec objects with quantity equal to 'power->electrical' and 3 spectra:
r, g, and b.
The wavelengths are 360 to 830 nm at 1 nm intervals.Details
All responsitivity spectra are linear combinations of the spectra in xyz1931.1nm.
These 2 theoretical cameras satisfy the Maxwell-Ives criterion by construction.
The responsivities are scaled so the response to D65.1nm is RGB=(1,1,1).
All spectra have negative lobes.
The BT.709 primaries and white point are the same as those of sRGB (though the EOCF functions are different).
Adobe RGB and sRGB share the same Red, Blue, and White chromaticities, and only differ in the Green.
This implies that for both cameras the Green output is 0 at Red and Blue, and 1 at White.
This in turn implies that the Green output is identical for both cameras for all input spectra,
and so the Green responsivity spectra are identical for both cameras.References
Poynton, Charles.
Digital Video and HD - Algorithms and Interfaces.
Morgan Kaufmann.
Second Edition. 2012.
Figure 26.5 on page 302.