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  Machine Learning Methods for Automatic Image Colorization

Charpiat, G., Bezrukov, I., Hofmann, M., Altun, Y., & Schölkopf, B. (2011). Machine Learning Methods for Automatic Image Colorization. In Computational Photography: Methods and Applications (pp. 395-418). Boca Raton, FL, USA: CRC Press.

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Charpiat, G1, Autor           
Bezrukov, I1, Autor           
Hofmann, M1, Autor           
Altun, Y1, Autor           
Schölkopf, B1, Autor           
Lukac, R., Herausgeber
Affiliations:
1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              

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 Zusammenfassung: We aim to color greyscale images automatically, without any manual intervention. The color proposition could then be interactively corrected by user-provided color landmarks if necessary. Automatic colorization is nontrivial since there is usually no one-to-one correspondence between color and local texture. The contribution of our framework is that we deal directly with multimodality and estimate, for each pixel of the image to be colored, the probability distribution of all possible colors, instead of choosing the most probable color at the local level. We also predict the expected variation of color at each pixel, thus defining a non-uniform spatial coherency criterion. We then use graph cuts to maximize the probability of the whole colored image at the global level. We work in the L-a-b color space in order to approximate the human perception of distances between colors, and we use machine learning tools to extract as much information as possible from a dataset of colored examples. The resulting algorithm is fast, designed to be more robust to texture noise, and is above all able to deal with ambiguity, in contrary to previous approaches.

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 Datum: 2011
 Publikationsstatus: Erschienen
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 Identifikatoren: ISBN: 978-1-4398-1749-0
URI: http://www.crcpress.com/product/isbn/9781439817490;jsessionid=k0wVniXEKlAPBlu7T7mdnA**
BibTex Citekey: 6334
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Titel: Computational Photography: Methods and Applications
Genre der Quelle: Buch
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Ort, Verlag, Ausgabe: Boca Raton, FL, USA : CRC Press
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 395 - 418 Identifikator: -