If I may add a bit to this thread.
Images do not exist. What exist is just the interpertation of random points of light, and in the case of digital, numbers collected and displayed on paper or CRT/LCD. If we take any single point, it is just that, or several or even a collection. They are just points of ink or light, what we create out of them is unique and in our mind.
Remember Edward Weston's B&W of the bell peper that looked to some as a nude with her legs curled under and head hidden by her body-----or was that just me? he most likely had the pepper with dinner that evening.
To belabour my point, we create our values based on our history and culture but it is not a given that what we see is real(based on the influences in our life)
We are lied to daily, to get our money(adverts) and support. Truth is the hardest commodity to find and easy to loose.
If you don't like what your mind sees, ask yourself why before being offended by a random pattern of dots on a page, it may well be all in your head. Wyndham
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I don't think images are made of random points of light at all. They would be just noise.
If they were random and existed only in our minds, why do so many dofferent people see the same image? They may react differnetly, but I think most people who see Adams' "Moon Rise" see the moon above some hills with clouds and a town.
Even Weston's Bell Pepper es seen by a lot of people as just that, a bell pepper.
Interesting thing about truth, truth doesn't care what anybody thinks about it. Truth cares not that I, or anyone else, think it is true.