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A comment on The rabbit hole of adding grain to digital photos is deeper than you think. Parent comment

Re:The rabbit hole of adding grain to digital photos is deep... by nomel on Sunday November 13, 2022 @09:28PM (#33589614)
In the context of what they said, pixels are the smallest unit of a display, all you will ever see with your eyes if looking at a display, and they are almost always square.

Having them represented as a circle or diamond wont change the point they were making.

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Re:The rabbit hole of adding grain to digital photos is deep... by jameshart on Monday November 14, 2022 @09:00AM (#33593982)
They’re not actually square, though. They’re (on almost any display technology) a mosaic of red green and blue patches arranged inside a square.

On a ‘retina’ class display these square areas are explicitly smaller than the resolution distinguishable by your eyes.

Any sharp edges or corners you think you can discern are your mind reconstructing an edge from a series of neural samples on your retina that are the sum of the output of various sub pixel blobs of red green and blue light that focus on that particular cluster of cone cells.

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Re:The rabbit hole of adding grain to digital photos is deep... by nomel on Monday November 14, 2022 @05:17PM (#33602074)
> arranged inside a square.

That is what we call a pixel: the smallest representation of a point of full color.

But, none of this matters for the point they were making.

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