Currently I am out on a walk having taken the day off to take my mother to the doctor's. As some folks know (via Facebook or Instagram) I always take my camera - a fine bit o' technology. And over the course of my photographic hobby I have been puzzled by a nagging dilemma within my cranium...

And that is the fact that either I do not perceive yellow correctly or my camera does not. I often times take photographs of yellow flowering lifeforms, and yet whence I review the photographs they are not as I saw them in the wilds of the Great Out of Doors...

How would one know if the reality they perceive is a reality that actually exists or if it is just a figment of imagination? How do I actually know what yellow is?