Published on 12, July, 2020
What colour is the dress?(1) blue and black(2) white and gold(3) other
The dress is a photograph that became a viral internet sensation on 26 February 2015, when viewers disagreed over whether the dress pictured was colored blue and black, or white and gold. The phenomenon revealed differences in human colour perception. https://en.wikipedia.org/wiki/The_dress
Here is another classic.
Can you describe what you see and the difference between the two images.
This comes from a book which describes in more detail the illusion and the reasons behind it.
The most common explanation is, because our visual system assumes the light comes from above, a totally different perception is obtained if the image is viewed upside down.
Nobody seems to have taken an interest in my images.
So...
In the top image the hemispheres on the diagonals look as if they bulging out of the page.
In the bottom image the hemispheres on the diagonals look as if they are holes in the page.
In reality both images are identical. The bottom image is just the top image upside down.