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Providing A Natural Solution to Color-Blindness. Tudor Dumitras Girish Varatkar Nick Zamora May 09, 2002. Outline. Emulating Color-blindness Approach and Results Correcting Color-blindness Approaches and Results. Emulating Color-blindness: Approach. confusion point.

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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


Outline

  • Emulating Color-blindness

    • Approach and Results

  • Correcting Color-blindness

    • Approaches and Results


Emulating Color-blindness: Approach

confusion point

The Color-blind cannot distinguish colors which lie on the same lines radiating from confusion point


Emulating Color-blindness: Approach


Emulating Color-blindness: ResultsOriginal Protanopic DeuteranopicTritanopic

Red-Green Color-blind person will see only spots in test above

and should be able to see 56 in the test below


Emulating Color-blindness: ResultsOriginal Protanopic DeuteranopicTritanopic

A person with normal color vision will see a 5, and a person with red/green Color-blindness will see a 2


Emulating Color-blindness: ResultsOriginal Protanopic DeuteranopicTritanopic

Above: www.vischeck.com results

Below: Our results


Outline

  • Emulating Color-blindness

    • Approach and Results

  • Correcting Color-blindness

    • Approaches and Results


Approach #1: Discrete Histogram Equalization With Rotations: Results


Approach #1: Discrete Histogram Equalization With Rotations: Results

Original Protanopic Deuteranopic Tritanopic


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 -√2

1 0 -1

√2 1 0


Approach #2: Edge Detection With Directional Filtering: Results

Original Protanopic Deuteranopic Tritanopic


Approach #3: Fractional V-Distortion: Approach

background

hidden

pattern


Approach #3: Fractional V-Distortion: Results

Originals Protanopic Deuteranopic


Approach #3: Fractional V-Distortion: Results

Emulation

Approach #3

Emulation


Approach #4: RDL – (Rotation, Dilation, and Luminance): Approach


Approach #4: RDL – (Rotation, Dilation, and Luminance): Results

Original Result


Approach #4: RDL – (Rotation, Dilation, and Luminance): Results

Original Result After Emulation


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