Flowers
Protanope's Perception
Recolored MS Protanopes
Reference Image Protanope's Perception Recolored for Protanopes
An Efficient Naturalness-Preserving Image-Recoloring Method for Dichromats
Giovane R. Kuhn
grkuhn@inf.ufrgs.br
Manuel M. Oliveira
oliveira@inf.ufrgs.br
Leandro A. F. Fernandes
laffernandes@inf.ufrgs.br

Instituto de Informática, UFRGS

Logo INFLogo UFRGS

IEEE Transactions on Visualization and Computer Graphics.
Vol. 14, no. 6, pp. 1747-1754, Nov./Dec. 2008, doi:10.1109/TVCG.2008.112  [DOI]


Contents

Abstract Downloads Results Reference Acknowledgments

Abstract

We present an efficient and automatic image-recoloring technique for dichromats that highlights important visual details that would otherwise be unnoticed by these individuals. While previous techniques approach this problem by potentially changing all colors of the original image, causing their results to look unnatural to color vision deficients, our approach preserves, as much as possible, the imageâ™s original colors. Our approach is about three orders of magnitude faster than previous ones. The results of a paired-comparison evaluation carried out with fourteen color-vision deficients (CVDs) indicated the preference of our technique over the state-of-the-art automatic recoloring technique for dichromats. When considering information visualization examples, the subjects tend to prefer our results over the original images. An extension of our technique that exaggerates color contrast tends to be preferred when CVDs compared pairs of scientific visualization images. These results provide valuable information for guiding the design of visualizations for color-vision deficients.

Downloads

IEEE Copyright Notice: “©2008 IEEE. Personal use  of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. 

Full paper
Application

Results

Video


Images

These images illustrate how our approach can enhance color contrast for dichromats. The first two columns show the images as perceived by normal trichromats, and by dichromats, respectively. The third column shows the recolored images produced by our technique. These images cover examples from scientific, medical, and information visualization, as well as natural images.

Reference Image Dichromats Perception Recoloring
Flame
 Simulated view of deuteranope
deuteranope
exaggerated recoloring
Foot
protanope
exaggerated recoloring
Chart
Deuteranope
regular recoloring
Pepers
protanope
regular recoloring
Building & Flowers
deuteranope
regular recoloring
Pencils
deuteranope
regular recoloring

Reference Image Credits - From top to bottom: CCSE at LBNL (Flame), Francisco Pinto (Foot), Wikimedia.org (others).

Reference

Citation

Giovane R. Kuhn, Manuel M. Oliveira, Leandro A. F. Fernandes, "An Efficient Naturalness-Preserving Image-Recoloring Method for Dichromats". IEEE Transactions on Visualization and Computer Graphics, vol. 14, no. 6, pp. 1747-1754, Nov./Dec. 2008, doi:10.1109/TVCG.2008.112

BibTeX

@article{KuhnEtAl2008,
  author = {Giovane R. Kuhn and Manuel M. Oliveira and Leandro A. F. Fernandes},
  title = {An Efficient Naturalness-Preserving Image-Recoloring Method for Dichromats},
  journal = {IEEE Transactions on Visualization and Computer Graphics},
  year = {2008},
  volume = {14},
  pages = {1747-1754},
  address = {Los Alamitos, CA, USA},
  doi = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2008.112},
  issn = {1077-2626},
  publisher = {IEEE Computer Society}
}

Keywords

Color-contrast enhancement, Color-vision deficiency, Recoloring algorithms, Mass-Spring Systems, Information and Scientific Visualization.

Acknowledgments

CNPq CNPq-Brazil fellowships and grants #  305613/2007-3 and 142627/2007-0.
CAPES
Giovane Kuhn was sponsored by a CAPES scholarship.