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Adding local short description: "Optical illusion", overriding Wikidata description "image that is perceived in one of two different ways, depending on viewing distance"
 
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{{Short description|Optical illusion}}
{{dablink|This article is about a specific optical illusion constructed by combining two images. The term "hybrid image" can more generally refer to any image assembled from different components.<ref>{{cite book |last=Gendler |first=Robert |chapter=Chapter 10. The Hybrid Image: A New Astro-Imaging Philosophy |pages=[https://archive.org/details/digitalastrophot0000unse/page/135 135–149] |title=Digital Astrophotography: The State of the Art |editor-first=David |editor-last=Ratledge |publisher=Springer |year=2005 |isbn=978-1-85233-734-6 |url=https://archive.org/details/digitalastrophot0000unse/page/135 }}</ref>}}
{{about|the optical illusion|images assembled from multiple sources|Collage|and|Photomontage}}


[[Image:Hybrid_image_decomposition.jpg|thumb|A hybrid image (top) constructed from low-frequency components of a photograph of [[Marilyn Monroe]] (left inset) and high-frequency components of a photograph of [[Albert Einstein]] (right inset).]]
[[Image:Southeast_hybrid_image_illusion.svg|thumb|400px|A textual hybrid image reading "southwest" up close and "northeast" from afar.]]
[[Image:Wikigolfball.hybrid.webm|thumb|right|180px|Video clip of a hybrid image showing a small golf ball that will show another spherical structure after being zoomed in.]]
[[Image:Hybrid_image_illusion_example_love_war.jpg|thumb|right|180px|Hybrid image example. From close it reads "Love", from far it reads "WAR".]]


A '''hybrid image''' is an image that is [[visual perception|perceived]] in one of two different ways, depending on viewing distance, based on the way humans process visual input. A technique for creating hybrid images exhibiting this [[optical illusion]] was developed by [[Aude Oliva]] of [[Massachusetts Institute of Technology|MIT]] and Philippe G. Schyns of [[University of Glasgow]], a method originally proposed by Schyns and Oliva in 1994. Hybrid images combine the low [[spatial frequencies]] of one picture with the high spatial frequencies of another picture, producing an image with an interpretation that changes with viewing distance.<ref>{{cite journal |author=Aude Oliva, Antonio Torralba and Philippe G. Schyns |title=Hybrid images |url=http://cvcl.mit.edu/hybrid/OlivaTorralb_Hybrid_Siggraph06.pdf |journal=[[ACM Transactions on Graphics]] |volume=25 |issue=3 |year=2006 |pages=527–532|doi=10.1145/1141911.1141919 }}</ref>
A '''hybrid image''' is an image that is [[visual perception|perceived]] in one of two different ways, depending on viewing distance, based on the way humans process visual input. A technique for creating hybrid images exhibiting this [[optical illusion]] was developed by [[Aude Oliva]] of [[Massachusetts Institute of Technology|MIT]] and Philippe G. Schyns of [[University of Glasgow]], a method they originally proposed in 1994. Hybrid images combine the low [[spatial frequencies]] of one picture with the high spatial frequencies of another picture, producing an image with an interpretation that changes with viewing distance.<ref>{{cite journal |author=Aude Oliva, Antonio Torralba and Philippe G. Schyns |title=Hybrid images |url=http://cvcl.mit.edu/hybrid/OlivaTorralb_Hybrid_Siggraph06.pdf |journal=[[ACM Transactions on Graphics]] |volume=25 |issue=3 |year=2006 |pages=527–532 |doi=10.1145/1141911.1141919 |access-date=2007-04-23 |archive-date=2007-03-15 |archive-url=https://web.archive.org/web/20070315210101/http://cvcl.mit.edu/hybrid/OlivaTorralb_Hybrid_Siggraph06.pdf |url-status=dead }}</ref>


Perhaps the most familiar example is one featuring [[Albert Einstein]] and [[Marilyn Monroe]]. Looking at the picture from a short distance, one can see a sharp image of Einstein, with only a hint of blurry distortion hinting at the presence of an overlaid image. Viewed from a distance in which the fine detail blurs, the unmistakable face of Monroe emerges.<ref>[http://cvcl.mit.edu/hybrid_gallery/gallery.html "Marilyn-Einstein" and other examples]</ref>
Perhaps the most familiar example is one featuring [[Albert Einstein]] and [[Marilyn Monroe]]. Looking at the picture from a short distance, one can see a sharp image of Einstein, with only a hint of blurry distortion hinting at the presence of an overlaid image. Viewed from a distance in which the fine detail blurs, the unmistakable face of Monroe emerges.<ref>{{Cite web |url=http://cvcl.mit.edu/hybrid_gallery/gallery.html |title="Marilyn-Einstein" and other examples |access-date=2008-02-02 |archive-date=2008-02-20 |archive-url=https://web.archive.org/web/20080220104434/http://cvcl.mit.edu/hybrid_gallery/gallery.html |url-status=dead }}</ref>


==Gallery==
[[Image:Hybrid_image_decomposition.jpg|thumb|center|400px|A hybrid image constructed from low-frequency components of a photograph of [[Marilyn Monroe]] (left inset) and high-frequency components of a photograph of [[Albert Einstein]] (right inset).]]
<gallery widths="250px">

Image:Southeast_hybrid_image_illusion.svg|A textual hybrid image reading "southwest" up close and "northeast" from afar
==See also==
Image:Mona_Lisa_face_hybrid_image.jpg|[[generative adversarial network#Fashion,_art_and_advertising|AI]]-generated hybrid image depicting a fictitious town up close and the face of the [[Mona Lisa]] from afar
*[[Optical illusions]]
Image:Wikigolfball.hybrid.webm|Video clip of a hybrid image showing a small golf ball that will show another spherical structure after being zoomed in
Image:Hybrid_image_illusion_example_love_war.jpg|Hybrid image example. From close it reads "Love", from far it reads "WAR"
</gallery>


==References==
==References==
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==External links==
==External links==
*[http://cvcl.mit.edu/hybrid_gallery/gallery.html Hybrid Images]
*[http://cvcl.mit.edu/hybrid_gallery/gallery.html Hybrid Images] {{Webarchive|url=https://web.archive.org/web/20080220104434/http://cvcl.mit.edu/hybrid_gallery/gallery.html |date=2008-02-20 }}
*[https://www.flickr.com/photos/nickleus/sets/72157627818875053/with/6269784699/ Hybrid Imagery set on flickr]
*[https://www.flickr.com/photos/nickleus/sets/72157627818875053/with/6269784699/ Hybrid Imagery set on flickr]
*[https://franciscouzo.github.io/hybrid/ Hybrid Image generator]
*[https://franciscouzo.github.io/hybrid/ Hybrid Image generator]

Latest revision as of 17:12, 5 August 2024

A hybrid image (top) constructed from low-frequency components of a photograph of Marilyn Monroe (left inset) and high-frequency components of a photograph of Albert Einstein (right inset).

A hybrid image is an image that is perceived in one of two different ways, depending on viewing distance, based on the way humans process visual input. A technique for creating hybrid images exhibiting this optical illusion was developed by Aude Oliva of MIT and Philippe G. Schyns of University of Glasgow, a method they originally proposed in 1994. Hybrid images combine the low spatial frequencies of one picture with the high spatial frequencies of another picture, producing an image with an interpretation that changes with viewing distance.[1]

Perhaps the most familiar example is one featuring Albert Einstein and Marilyn Monroe. Looking at the picture from a short distance, one can see a sharp image of Einstein, with only a hint of blurry distortion hinting at the presence of an overlaid image. Viewed from a distance in which the fine detail blurs, the unmistakable face of Monroe emerges.[2]

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References

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  1. ^ Aude Oliva, Antonio Torralba and Philippe G. Schyns (2006). "Hybrid images" (PDF). ACM Transactions on Graphics. 25 (3): 527–532. doi:10.1145/1141911.1141919. Archived from the original (PDF) on 2007-03-15. Retrieved 2007-04-23.
  2. ^ ""Marilyn-Einstein" and other examples". Archived from the original on 2008-02-20. Retrieved 2008-02-02.
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