This shows up in CCD sensors where you have two green pixels, one red, and one blue in a 2x2 square. You can see the sensitivity as part of the ppmtopgm progra

This shows up in CCD sensors where you have two green pixels, one red, and one blue in a 2x2 square. You can see the sensitivity as part of the ppmtopgm program. ppmtopgm (https://netpbm.sourceforge.net/doc/ppmtopgm.html https://netpbm.sourceforge.net/doc/ppmtopgm.html) ppmtopgm reads a PPM as input and produces a PGM as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula ppmtopgm uses is y = .299 r + .587 g + .114 b. Note the coefficient for blue is 0.114 and green is 0.587. This also has a spoof on Late Lament ( https://youtu.be/VNC54BKv3mc?t=109 https://youtu.be/VNC54BKv3mc?t=109 ) that gives me a chuckle... Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error.