View source for Duotone

{{Short description|Superimposition of one contrasting colour halftone over another color halftone}}
{{Confuse|Duplex printing}}
{{about|multitone printing|the Kenny G album|Duotones{{!}}''Duotones''|the drug|Duoton}}
{{More citations needed|date=January 2018}}
[[File:Volunteer Park Blues.jpg|thumb|right|250px|A duotone image, made using black and blue in [[Photoshop]]]]
'''Duotone''' (sometimes also known as ''Duplex'') is a [[halftone]] reproduction of an image using the superimposition of one contrasting color halftone over another color halftone.<ref>{{Cite web|url=https://designshack.net/articles/graphics/duotone-color-tips-examples-for-this-vibrant-trend/|title=Duotone Color: Tips & Examples for This Vibrant Trend|website=Design Shack|language=en-US|access-date=2018-01-21}}</ref> This is most often used to bring out middle tones and highlights of an image. Traditionally the superimposed contrasting halftone color is black and the most commonly implemented colors are blue, yellow, brown, and red. There are, however, many varieties of color combinations used.<ref>Pipes, Alan. ''Production For Graphic Designers 2nd Edition, Page 86'': Prentice Hall Inc 1997</ref>

==Modern use==
Due to recent advances in technology, duotones, tritones, and quadtones can be easily created using image manipulation programs. Duotone color mode in Adobe [[Photoshop]] computes the highlights and middle tones of a [[monochrome]] ([[grayscale]] or [[black-and-white]]) image in one color, and allows the user to choose any color as the second color.

==Duograph==
A fake duotone, or duograph, is done by printing a single color with a one-color halftone over it.<ref>{{Cite news|url=http://thelawlers.com/Blognosticator/?p=592|title=Making "fake duotones" – or tinted images|date=2012-04-23|work=thelawlers.com|access-date=2018-01-21|language=en-US}}</ref> This process is generally not preferred over a regular duotone, as it loses much of the contrast of the image but it is easier and faster to create.<ref>{{Cite book|title=The Photoshop Elements 13 Book for Digital Photographers|last=Kelby|first=Scott|last2=Kloskowski|first2=Matt|publisher=Pearson Education|year=2015|isbn=978-0133990089}}</ref>

==See also==
*[[Sepia tone]]
*[[Cyanotype]]
*[[Halftone]]
*[[Printmaking]]
*[[Color separation]]

==References==
{{reflist}}

==External links==
{{Commons category}}
*[https://web.archive.org/web/20080904040607/http://www.luminous-landscape.com/tutorials/duotone.shtml Luminous Landscape Duotone Article]
*[https://web.archive.org/web/20120710062956/http://landscapephoto.us/Articles/DigitalBlackAndWhite.html LandscapePhoto.us Article on B/W and toning]
*[https://web.archive.org/web/20060616142806/http://www.creativepro.com/story/howto/19805.html?origin=story Creative Pro Article]
*[https://web.archive.org/web/20240226014840/http://printernational.org/what-is-duotone.php Working with Duotone in Photoshop]
*[https://www.techbuzzonline.com/duotone-photoshop-actions/ Duotone Photoshop Actions]
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[[Category:Photographic techniques]]
[[Category:Printing terminology]]


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