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Design of a color sensing system to aid the color blind

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1 Author(s)
Mcdowell, J. ; Aline Inc., Redondo Beach, CA

A color sensing device is implemented using two different color sensors, a microcontroller, and a display. Nine different colors of tissue paper were measured with the color sensors. The performance of the sensors was evaluated by converting the red, green, blue (RGB) values they produced back into colors on a computer and then comparing these colors with the colored tissue paper. An inexpensive commercial color sensor produced very accurate color for all nine color samples while the homemade sensor produced recognizable but washed-out looking color for most of the colors. The performance of the homemade sensor is strongly dependent on the positioning of the color sample relative to the light emitting diodes (LEDs).

Published in:

Potentials, IEEE  (Volume:27 ,  Issue: 4 )