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The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face. Hybrid image: A Hybrid image is an optical illusion developed at MIT in which an image can be interpreted in one of two different ways depending on viewing distance. Illusory contours
The Ponzo illusion is an example of an illusion which uses monocular cues of depth perception to fool the eye. But even with two-dimensional images, the brain exaggerates vertical distances when compared with horizontal distances, as in the vertical–horizontal illusion where the two lines are exactly the same length.
If you're in the mood to trick your brain, this optical illusion will definitely give it a workout. Skip to main content. 24/7 Help. For premium support please call: 800-290 ...
When the single 2D image is viewed with proper eye convergence, it causes the brain to fuse different patterns perceived by the two eyes into a virtual 3D image without, hidden within the 2D image, the aid of any optical equipment. SIS images are created using a repeating pattern. [18] [29] Programs for their creation include Mathematica. [30] [31]
Persistence of vision is the optical illusion that occurs when the visual perception of an object does not cease for some time after the rays of light proceeding from it have ceased to enter the eye. [1] The illusion has also been described as "retinal persistence", [2] "persistence of impressions", [3] simply "persistence" and other variations ...
Cover one eye; read the letters aloud. Cover the other eye; read the letters aloud. Ah, the standard eye exam. A few lines of text and the doctor can tell you whether you have poor vision. But let ...
Furthermore, moving one's eyes away from the image after a period of time may result in a brief, strong afterimage of a circle of green spots. Troxler's fading , also called Troxler fading or the Troxler effect , is an optical illusion affecting visual perception .
When these images are rotated, however, it becomes clear that the face on the right had its eyes and mouth inverted. The Thatcher effect or Thatcher illusion is a phenomenon where it becomes more difficult to detect local feature changes in an upside-down face, despite identical changes being obvious in an upright face.