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I found the following anamorphic image on this site

enter image description here

Can anyone explain the physics behind the working of such images? Can we create our own anamorphic images? If so how?

Thanks in advance.

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There isn't really any "physics" behind it; it's just an optical illusion. The artist must have projected an image of Medusa from the exact point at which the photo was later taken, and painted the projected shapes on the floor, columns, and walls. If you look at the painting from any angle except the one pictured, the shapes no longer make sense.

Artists often do similar things on sidewalks with chalk, where you have to be standing at a particular vantage point to observe the image correctly (undistorted).

Can we create our own anamorphic images? If so how?

All you need is a projector that will project the image you want to draw onto a surface, or a series of surfaces, at the angle you choose, and then trace over the projected shapes.

Alternatively (as the sidewalk artists do), you can take a photo of your subject at the desired angle, draw a grid over the photo, then draw an elongated grid on the sidewalk, then copy the image from the photo to the sidewalk one square at a time.

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