Re:AMD’s $499 Ryzen 7 1800X Beats $1700 i7 6950X with 1-Clic...
by dpark on Sunday February 26, 2017 @04:51PM
(#13740136)
There aren't actually three channels per pixel on most sensors. It's one channel (and only one color) and then there's a mixing process. I'm doubtful that you need 48 bits to do that mixing correctly, but maybe that is the standard way to do it.
Presumably that's 16-bits for each channel of Red, Green, Blue. Since every pixel is composed of the three RGB components, that's how you get 48-bits for every pixel (and internally, Photoshop refers to 16-bits per color channel as 'RGB48Mode').