
Proceedings Paper
Spatial Intensity Channel Replacement Daltonization (SIChaRDa)Format | Member Price | Non-Member Price |
---|---|---|
$17.00 | $21.00 |
Paper Abstract
Color-deficient observers are often confronted with problems in daily life due to the fact that some colors appear
less differentiable than for normal sighted people. So-called daltonization methods have been proposed to increase
color contrast for color-deficient people. We propose two methods for better daltonization solutions by Spatial
Intensity Channel Replacement Daltonization (SIChaRDa). We propose replacing the intensity channel with
a grayscale version of the image computed by using spatial color-to-gray methods that are either capable of
translating color contrasts into lightness contrasts or that are capable of translating color edges into lightness
edges, and/or integrating information from the red–green channel into the intensity channel. We tested two
implementations on different types of images, and we could show that results depend on the one hand on the
algorithm used for computing the grayscale image, and on the other hand on the content of the image. We show
that the spatial methods work best on real-life images were confusing colors are directly adjacent to each other,
respectively where they are in close proximity. On the contrary, using composed artificial images with borders
of white space between colors – like for example in the Ishihara plates – leads only to unsatisfactory results.
Paper Details
Date Published: 8 February 2015
PDF: 14 pages
Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 939516 (8 February 2015); doi: 10.1117/12.2079226
Published in SPIE Proceedings Vol. 9395:
Color Imaging XX: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)
PDF: 14 pages
Proc. SPIE 9395, Color Imaging XX: Displaying, Processing, Hardcopy, and Applications, 939516 (8 February 2015); doi: 10.1117/12.2079226
Show Author Affiliations
Joschua Thomas Simon-Liedtke, Gjøvik Univ. College (Norway)
Ivar Farup, Gjøvik Univ. College (Norway)
Published in SPIE Proceedings Vol. 9395:
Color Imaging XX: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)
© SPIE. Terms of Use
