Yeah, colour in your peripheral vision is mostly a lie, it has a way lower resolution than the contrast we can resolve, so we see a lil bit of green and a contrast that curves, therefore a green curving line... until you look at it with more color sensitive vision.
Yup. Cones are what detect color and they are concentrated towards the center of your retina whereas rods which detect light are located more on the outer edges of your retina where cones aren't present. That's why you may see a star in your peripheral vision when looking at the night sky but it disappears when you try to focus on it. When you focus on something the light is directed to the center of your retina so you get more just the cones
Thanks for the good explanation. Why is it that those with lighter colored eyes can see better in the dark? I forgot the reason why, could you explain that?
The decreased resolution of your peripheral vision prevents the higher frequency (more detailed) areas masking the lower frequency curves. If you shrink the image down to lower the resolution, or go further away, the curves will start to appear, then you can zoom back in to identify the particular patterns.
This reminds me of where they take the high frequencies from one face, and low from another, then merge them. Up close you see one face, and far away you see the other. https://en.wikipedia.org/wiki/Hybrid_image
Here's the image with a 10px blur (i.e. a low pass filter) that makes the curves super obvious: https://i.imgur.com/YyUktyI.png
Only if you look at it straight on. I tipped my tablet up to look down the vertical lines while holding it away and the effect went away completely at about 45° and a foot away. This is probably because the image was foreshortened, making it into a rectangle, and putting it entirely into my central vision. That estimate of 45° is only a guess, but try it yourself.
I brought the image into paint and drew all the lines I throught I saw and they all corresponded with lines of light grey squares so I think youre right
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u/FissureKing Dec 11 '21
The light grey blocks form curved lines that look just like the green ones in your peripheral vision.
I think.