Art-photographic detail enhancement

We present a novel method for enhancing details in a digital photograph, inspired by the principle of art photography. In contrast to the previous methods that primarily rely on tone scaling, our technique provides a flexible tone transform model that consists of two operators: shifting and scaling....

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Vydáno v:Computer graphics forum Ročník 33; číslo 2; s. 391 - 400
Hlavní autoři: Son, Minjung, Lee, Yunjin, Kang, Henry, Lee, Seungyong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Oxford Blackwell Publishing Ltd 01.05.2014
Témata:
Analysis
Categories and Subject Descriptors (according to ACM CCS)
Computer graphics
Digital
I.3.3 [Computer Graphics]: Picture/Image Generation-Display algorithms
Image enhancement
Mathematical models
Operators
Optimization
Photography
Studies
Transforms
ISSN:0167-7055, 1467-8659
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Popis
Shrnutí:We present a novel method for enhancing details in a digital photograph, inspired by the principle of art photography. In contrast to the previous methods that primarily rely on tone scaling, our technique provides a flexible tone transform model that consists of two operators: shifting and scaling. This model permits shifting of the tonal range in each image region to enable significant detail boosting regardless of the original tone. We optimize these shift and scale factors in our constrained optimization framework to achieve extreme detail enhancement across the image in a piecewise smooth fashion, as in art photography. The experimental results show that the proposed method brings out a significantly large amount of details even from an ordinary low‐dynamic range image.
Bibliografie:istex:7FFA0CED19E1416D1FA8026CA225348BC48B9241
Supporting Information
ark:/67375/WNG-CCJSBF19-N
ArticleID:CGF12298
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.12298