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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]

Gallery

A textual hybrid image reading "southwest" up close and "northeast" from afar
AI-generated hybrid image depicting a fictitious town up close and the face of the Mona Lisa from afar
Video clip of a hybrid image showing a small golf ball that will show another spherical structure after being zoomed in
Hybrid image example. From close it reads "Love", from far it reads "WAR"

References

^ 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.
^ ""Marilyn-Einstein" and other examples". Archived from the original on 2008-02-20. Retrieved 2008-02-02.

External links

Hybrid Images Archived 2008-02-20 at the Wayback Machine
Hybrid Imagery set on flickr
Hybrid Image generator

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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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@@ Line 1: / Line 1: @@
+{{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=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}}</ref>}}
+{{about|the optical illusion|images assembled from multiple sources|Collage|and|Photomontage}}
-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]] ''(SIGGRAPH 2006 issue)'' |volume=25 |issue=3 |year=2006 |pages=527–532}}</ref>
+[[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).]]
-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>
+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>{{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==
+<gallery widths="250px">
+Image:Southeast_hybrid_image_illusion.svg|A textual hybrid image reading "southwest" up close and "northeast" from afar
+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
+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>
-[[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).]]
-==See also==
-*[[Optical illusions]]
 ==References==
 <references />
 ==External links==
+*[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 }}
-*[http://cvcl.mit.edu/hybridimage.htm Hybrid Images]
-*[http://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]
 [[Category:Optical illusions]]
 {{optics-stub}}