Providing A Natural Solution to Color-Blindness

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Providing A Natural Solution to Color-Blindness

• Tudor Dumitras
• Girish Varatkar
• Nick Zamora
• May 09, 2002

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Outline

• Emulating Color-blindness
• Approach and Results
• Correcting Color-blindness
• Approaches and Results

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Emulating Color-blindness Approach
confusion point
The Color-blind cannot distinguish colors which
lie on the same lines radiating from confusion
point
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Emulating Color-blindness Approach
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Emulating Color-blindness ResultsOriginal
Protanopic Deuteranopic Tritanopic
Red-Green Color-blind person will see only spots
in test above and should be able to see 56 in the
test below
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Emulating Color-blindness ResultsOriginal
Protanopic Deuteranopic Tritanopic
A person with normal color vision will see a 5,
and a person with red/green Color-blindness will
see a 2
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Emulating Color-blindness ResultsOriginal
Protanopic Deuteranopic Tritanopic
Above www.vischeck.com results Below Our
results
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Outline

• Emulating Color-blindness
• Approach and Results
• Correcting Color-blindness
• Approaches and Results

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Approach 1 Discrete Histogram Equalization
With Rotations Results
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Approach 1 Discrete Histogram Equalization
With Rotations Results
Original Protanopic Deuteranopic
Tritanopic
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Approach 2 Edge Detection With Directional
Filtering Approach

• Detect edges based on color weaknesses
• Transform edges so that
• Guarantee all edges are discernable
• For example translate red edges to blue and
  green edges

0 -1 -v2 1 0
-1 v2 1 0
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Approach 2 Edge Detection With Directional
Filtering Results
Original Protanopic Deuteranopic
Tritanopic
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Approach 3 Fractional V-Distortion Approach
background
hidden pattern
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Approach 3 Fractional V-Distortion Results
Originals Protanopic
Deuteranopic
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Approach 3 Fractional V-Distortion Results
Emulation
Approach 3
Emulation
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Approach 4 RDL (Rotation, Dilation, and
Luminance) Approach
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Approach 4 RDL (Rotation, Dilation, and
Luminance) Results
Original
Result
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Approach 4 RDL (Rotation, Dilation, and
Luminance) Results
Original Result
After Emulation