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  2. Afterimage - Wikipedia

    en.wikipedia.org/wiki/Afterimage

    An afterimage in general is an optical illusion that refers to an image continuing to appear after exposure to the original image has ceased. Prolonged viewing of the colored patch induces an afterimage of the complementary color (for example, yellow color induces a bluish afterimage).

  3. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    Afterimage illusion An afterimage or ghost image is a visual illusion involving an image continuing to appear in one's vision after the exposure to the original image has ceased. Afterimage on empty shape (also known as color dove illusion) This type of illusion is designed to exploit graphical similarities. Ambiguous image

  4. Negative (photography) - Wikipedia

    en.wikipedia.org/wiki/Negative_(photography)

    Under a phenomenon known as the ‘negative picture illusion’, a negative image can be briefly experienced by the human visual system where an afterimage persists subsequent to a prolonged gaze. Film negatives usually have less contrast, but a wider dynamic range , than the final printed positive images.

  5. Persistence of vision - Wikipedia

    en.wikipedia.org/wiki/Persistence_of_vision

    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 ...

  6. Troxler's fading - Wikipedia

    en.wikipedia.org/wiki/Troxler's_fading

    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 .

  7. Autostereogram - Wikipedia

    en.wikipedia.org/wiki/Autostereogram

    An autostereogram is a two-dimensional (2D) image that can create the optical illusion of a three-dimensional (3D) scene. Autostereograms use only one image to accomplish the effect while normal stereograms require two. The 3D scene in an autostereogram is often unrecognizable until it is viewed properly, unlike typical stereograms.

  8. These before and after photos show the real effects of ... - AOL

    www.aol.com/news/2016-05-01-these-before-and...

    Click through to see the shocking before and after images: The main side effects heroin causes on appearance according to New Health Advisor are: Weight loss due to loss of appetite, or because a ...

  9. Optical illusion - Wikipedia

    en.wikipedia.org/wiki/Optical_illusion

    Optical illusion is also used in film by the technique of forced perspective. Op art is a style of art that uses optical illusions to create an impression of movement, or hidden images and patterns. Trompe-l'œil uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions.