MPI-INF D4 Publications: Journal Article: Vectorising Bitmaps into Semi-Transparent Gradient Layers

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Author, Editor(s)

Author(s):

Richardt, Christian
Lopez-Moreno, Jorge
Bousseau, Adrien
Agrawala, Maneesh
Drettakis, George

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Not MPG Author(s):

Lopez-Moreno, Jorge
Bousseau, Adrien
Agrawala, Maneesh
Drettakis, George

BibTeX cite key*:

Richardt2014

Title

Title*:	Vectorising Bitmaps into Semi-Transparent Gradient Layers
Attachment(s):	LayeredImageVectorisation-paper.pdf (6746.42 KB)

Journal

Journal Title*:	Computer Graphics Forum (Proceedings of EGSR 2014)	Journal's URL:	https://www.eg.org/index.php/publications/computer-graphics-forum
Download URL for the article:	http://onlinelibrary.wiley.com/doi/10.1111/cgf.12408/abstract	Language:	English

Publisher

Publisher's Name:	John Wiley & Sons Ltd.	Publisher's URL:
Publisher's Address:		ISSN:	1467-8659

Vol, No, pp, Date

Volume*:	33	Number:	4
Publishing Date:	July 2014
Pages*:	11-19	Number of VG Pages:
Page Start:	11	Page End:	19
Sequence Number:		DOI:	10.1111/cgf.12408

Note, Abstract, ©

Note:
(LaTeX) Abstract:	We present an interactive approach for decompositing bitmap drawings and studio photographs into opaque and semi-transparent vector layers. Semi-transparent layers are especially challenging to extract, since they require the inversion of the non-linear compositing equation. We make this problem tractable by exploiting the parametric nature of vector gradients, jointly separating and vectorising semi-transparent regions. Specifically, we constrain the foreground colours to vary according to linear or radial parametric gradients, restricting the number of unknowns and allowing our system to efficiently solve for an editable semi-transparent foreground. We propose a progressive workflow, where the user successively selects a semi-transparent or opaque region in the bitmap, which our algorithm separates as a foreground vector gradient and a background bitmap layer. The user can choose to decompose the background further or vectorise it as an opaque layer. The resulting layered vector representation allows a variety of edits, such as modifying the shape of highlights, adding texture to an object or changing its diffuse colour.
URL for the Abstract:	http://richardt.name/publications/layered-vectorisation/
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HyperLinks / References / URLs:
Copyright Message:	The definitive version is available at http://diglib.eg.org/ and http://onlinelibrary.wiley.com/.
Personal Comments:
Download Access Level:	Public

Correlation

MPG Unit:	Max-Planck-Institut für Informatik

MPG Subunit:	Computer Graphics Group
External Affiliations:	Inria; URJC, Madrid; University of California, Berkeley
Audience:	experts only
Appearance:	MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort

BibTeX Entry:

@ARTICLE{Richardt2014,
AUTHOR = {Richardt, Christian and Lopez-Moreno, Jorge and Bousseau, Adrien and Agrawala, Maneesh and Drettakis, George},
TITLE = {Vectorising Bitmaps into Semi-Transparent Gradient Layers},
JOURNAL = {Computer Graphics Forum (Proceedings of EGSR 2014)},
PUBLISHER = {John Wiley & Sons Ltd.},
YEAR = {2014},
NUMBER = {4},
VOLUME = {33},
PAGES = {11--19},
MONTH = {July},
ISBN = {1467-8659},
DOI = {10.1111/cgf.12408},
}

Entry last modified by Christian Richardt, 10/17/2014

Edit History (please click the blue arrow to see the details)

	Editor(s) [Library]	Created 09/03/2014 01:05:09 PM
Revision 0.	Editor Christian Richardt	Edit Date 03/09/2014 13:05:09

Attachment Section

LayeredImageVectorisation-paper.pdf

LayeredImageVectorisation-paper.pdf