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Author, Editor

Author(s):

Krawczyk, Grzegorz
Myszkowski, Karol
Seidel, Hans-Peter

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Editor(s):

Cohen-Or, Daniel
Slavik, Pavel

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Not MPII Editor(s):

Cohen-Or, Daniel
Slavik, Pavel

BibTeX cite key*:

KrawczykEG2007

Title, Booktitle

Title*:

Contrast Restoration by Adaptive Countershading


krawczyk07eg.pdf (710.14 KB)

Booktitle*:

Computer Graphics Forum (Proc. EUROGRAPHICS)

Event, URLs

URL of the conference:

http://www.cgg.cvut.cz/eg07/

URL for downloading the paper:

http://www.mpi-inf.mpg.de/resources/hdr/cshading/krawczyk07eg.pdf

Event Address*:

Prague, Czech Republic

Language:

English

Event Date*
(no longer used):


Organization:

The European Association for Computer Graphics

Event Start Date:

3 September 2007

Event End Date:

7 September 2007

Publisher

Name*:

Blackwell

URL:

http://www.blackwellpublishing.com/

Address*:

Oxford, UK

Type:


Vol, No, Year, pp.

Series:


Volume:

26(3)

Number:

3

Month:


Pages:

581-590

Year*:

2007

VG Wort Pages:


ISBN/ISSN:


Sequence Number:


DOI:




Note, Abstract, ©


(LaTeX) Abstract:

We address the problem of communicating contrasts in images degraded with respect to their original due to
processing with computer graphics algorithms. Such degradation can happen during the tone mapping of high dynamic
range images, or while rendering scenes with low contrast shaders or with poor lighting. Inspired by a family
of known perceptual illusions: Craik-O'Brien-Cornsweet, we enhance contrasts by modulating brightness at
the edges to create countershading proles. We generalize unsharp masking by coupling it with a multi-resolution
local contrast metric to automatically create the countershading proles from the sub-band components which are
individually adjusted to each corrected feature to best enhance contrast with respect to the reference. Additionally,
we employ a visual detection model to assure that our enhancements are not perceived as objectionable halo
artifacts. The overall appearance of images remains mostly unchanged and the enhancement is achieved within
the available dynamic range. We use our method to post-correct tone mapped images and improve images using
their depth information.



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Access Level:

Public

Correlation

MPG Unit:

Max-Planck-Institut für Informatik



MPG Subunit:

Computer Graphics Group

Audience:

popular

Appearance:

MPII WWW Server, MPII FTP Server, MPG publications list, university publications list, working group publication list, Fachbeirat, VG Wort



BibTeX Entry:

@INPROCEEDINGS{KrawczykEG2007,
AUTHOR = {Krawczyk, Grzegorz and Myszkowski, Karol and Seidel, Hans-Peter},
EDITOR = {Cohen-Or, Daniel and Slavik, Pavel},
TITLE = {Contrast Restoration by Adaptive Countershading},
BOOKTITLE = {Computer Graphics Forum (Proc. EUROGRAPHICS)},
PUBLISHER = {Blackwell},
YEAR = {2007},
ORGANIZATION = {The European Association for Computer Graphics},
NUMBER = {3},
VOLUME = {26(3)},
PAGES = {581--590},
ADDRESS = {Prague, Czech Republic},
ISBN = {0167-7055},
}


Entry last modified by Thomas Schultz, 03/20/2009
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Editor(s)
Karol Myszkowski
Created
01/02/2008 06:04:33 PM
Revisions
5.
4.
3.
2.
1.
Editor(s)
Thomas Schultz
Karol Myszkowski
Karol Myszkowski
Uwe Brahm
Uwe Brahm
Edit Dates
03/20/2009 06:29:36 PM
02/13/2009 07:09:11 PM
09/15/2008 07:42:32 PM
02/28/2008 04:22:51 PM
26.02.2008 09:20:43
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