#SizeConstancy
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krantzj.bsky.social
This is a my version of a classic demonstration of Size Constancy by Edward Boring. The two images of the woman on the right are the same size. Check it out. (More in alt of the second image). #Knowledge #SensoryArt #EastCoastKin #SizeConstancy #EdwardBoring #VisualIllusions
Image of two women sitting in a hallway, one is sitting further back. Compare the actual size of the image of the woman on the right here to her image in the first photograph. Physically they are the same size. In fact is the same image, cropped out of the first photo and pasted into the second photo. So how does she look so much smaller? This is not the place for an extended discussion, so simply: As objects get farther away, they get smaller on our retina. Just think that the Sun is much larger than Earth but is about the same size as the Moon in the night sky because it is farther away. To compensate for this fact, our visual system uses a variety of depth information to compensate for that fact, up to a point. In the first photo, the woman on the right looks farther away so she looks normal size in our brain. In the second image, she is lace at the same depth plain as the woman on the left. Now, you notice how much smaller an image she is. This is called size constancy.
September 19, 2025 at 4:11 PM