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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: Results

Original 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

Emulating Color-blindness: Results

Original 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

Emulating Color-blindness: Results

Original Protanopic Deuteranopic Tritanopic









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





1. Detect edges based on color

weaknesses

2. Transform edges so that

• Guarantee all edges are

discernable







[ 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

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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