COLOR SCIENCE

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[ Spectra | Chromaticity | Blackbody | Color Links ]

SPECTRA

The spectra below were generated using different RGB values for wavelengths between 380nm and 780nm. This was done by using a FORTRAN program that uses linear approximations for the RGB color coefficients. Alphabet Systems used this FORTRAN program to make their JavaScript Visible Spectrum.

Continuous Spectrum

Absorption Spectrum of Hydrogen

Emission Spectrum of Hydrogen

CHROMATICITY DIAGRAM

The CIE XYZ chromaticity diagram below was created using a FORTRAN program that computes the red, green and blue color coefficients for each coordinate (x,y). For another approach, see the UNIX cietoppm utility which is a NETPBM extension.

BLACKBODY RADIATION

The diagram below was created using a FORTRAN program that computes the red, green and blue color coefficients for hot objects. The program uses the CIE color matching functions and Planck's distribution function for the spectral radiance of a blackbody.

COLOR RELATED INFORMATION

FREQUENTLY ASKED QUESTIONS

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Dan Bruton
astro@sfasu.edu

Roy G. Biv