In the spirit of not disputing definitons, may I suggest: A and B are the same colorRGB, but, interpreting the image as a picture (as the eye does), not the same colorALBEDO.
This is perhaps beating a dead horse, but “albedo” is supposed to be a ratio between reflected and incident lights, and I would bet that the albedo of these two patches of screen is also identical, just as their RGB values are identical.
Not in the actual 3D scene that your brain interprets the picture to be of, only in the context of a 2D printout of the image (albedo is not really a relevant property for emissive display devices like LCDs or CRTs).
When I said “interpreting the image as a picture”, I meant, “interpreting the image as a picture of a checkerboard with a cylinder casting a shadow on it”—the albedos in question are of the squares A and B on the depicted board.
In the spirit of not disputing definitons, may I suggest: A and B are the same colorRGB, but, interpreting the image as a picture (as the eye does), not the same colorALBEDO.
Edit: Correction—“as the visual system does”.
This is perhaps beating a dead horse, but “albedo” is supposed to be a ratio between reflected and incident lights, and I would bet that the albedo of these two patches of screen is also identical, just as their RGB values are identical.
Not in the actual 3D scene that your brain interprets the picture to be of, only in the context of a 2D printout of the image (albedo is not really a relevant property for emissive display devices like LCDs or CRTs).
When I said “interpreting the image as a picture”, I meant, “interpreting the image as a picture of a checkerboard with a cylinder casting a shadow on it”—the albedos in question are of the squares A and B on the depicted board.
Ah, “inferred albedo”. In that case we agree.
Thank you.