*! version 1.0.0 21MAR2016

Simulating color sight impairments on one or more colors

help for brewcbsim

brewcbsim -- a program to simulate how a given color would
be perceived by individuals with achromatopsia, protanopia, deuteranopia, or
tritanopia.

Syntax

brewcbsim red green blue | named color style

Description

brewcbsim is used to simulate how a given color (specified as an RGB tuple in [0, 255]) would be perceived by individuals with color sight impairments.

Examples

Green channel dominant color.

brewcbsim 63 210 142

Blue channel dominant color.

brewcbsim 8 151 233

Red channel dominant color

brewcbsim 182 33 43

These examples can be viewed here.

Returned Values

Macro Value

r(original#) The RGB value for the nth color passed to the command

r(achromatopsic#) Transformed RGB value for the nth color (Complete Color Vision Loss)

r(protanopic#) Transformed RGB value for the nth color (Red Color Impairment)

r(deuteranopic#) Transformed RGB value for the nth color (Green Color Impairment)

r(tritanopic#) Transformed RGB value for the nth color (Blue Color Impairment)

References

Wickline, M. (2014). Color.Vision.Simulate, Version 0.1. Retrieved from:
http://galacticmilk.com/labs/Color-Vision/Javascript/Color.Vision.Simulate.js.
Retrieved on: 24nov2015.

Meyer, G. W., & Greenberg, D. P. (1988). Color-Defective Vision and Computer Graphics Displays.
Computer Graphics and Applications, IEEE 8(5), pp. 28-40.

Smith, V. C., & Pokorny, J. (2005). Spectral sensitivity of the foveal cone photopigments between 400 and 500nm.
Journal of the Optical Society of America A, 22(10), pp. 2060-2071.

Lindbloom, B. (2001). RGB working space information. Retrieved from: http://www.brucelindbloom.com/WorkingSpaceInfo.html. Retrieved on 24nov2015.

Author

William R. Buchanan, Ph.D.

Data Scientist

Minneapolis Public Schools

William.Buchanan at mpls [dot] k12 [dot] mn [dot] us