Abstract

The adjustable parameters in a MacAdam-modified version of Friele’s 1965 proposal for calculating color differences have been optimized, according to a criterion of MacAdam, to fit PGN experimental data. The mean-square error of fitting is 0.030. The distribution of the resulting color-metric coefficients more closely approximates those of the PGN data than do previous versions of Friele's proposals. The optimized primaries have chromaticity coordinates of x=0.74054, y= 0. 2 5946 for the red; <i>x</i>= -1.11696, <i>y</i>=2.11696 for the green; and <i>x</i>=0.13939, <i>y</i>= -0.03454 for the blue primary.

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References

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  1. L. F. C. Friele, Die Farbe 10, 193 (1961).
  2. D. L. MacAdam, J. Opt. Soc. Am. 54, 249 (1964).
  3. D. L. MacAdam, J. Opt. Soc. Am. 54, 1161 (1964).
  4. D. L. MacAdam, J. Opt. Soc. Am. 55, 91 (1965).
  5. D. L. MacAdam, Official Digest, Journal of Paint Technology, 37, 1488 (1965).
  6. D. L. MacAdam, Acta Chromatica 1, (4) 1 (1965).
  7. L. F. C. Friele, J. Opt. Soc. Am. 55, 1314 (1965).
  8. L. F. C. Friele, J. Opt. Soc. Am. 56, 259 (1966).
  9. D. L. MacAdam, J. Opt. Soc. Am. 56, 1784 (1966).
  10. L. Silberstein and D. L. MacAdam, J. Opt. Soc. Am. 35, 32 (1945).
  11. D. L. MacAdam, J. Opt. Soc. Am. 47, 268 (1957).
  12. A complete set of comparison ellipses has been deposited as Document number 9298 with the ADI Auxiliary Publications Project, Photoduplication Service, Library of Congress, Washington, D. C. 20540. A copy may be secured by citing the Document number and by remitting $3.75 for photoprints, or $2.00 for 35 mm microfilm. Advance payment is required. Make checks or money orders payable to: Chief, Photoduplication Service, Library of Congress.

Friele, L. F. C.

L. F. C. Friele, Die Farbe 10, 193 (1961).

L. F. C. Friele, J. Opt. Soc. Am. 55, 1314 (1965).

L. F. C. Friele, J. Opt. Soc. Am. 56, 259 (1966).

MacAdam, D. L.

D. L. MacAdam, J. Opt. Soc. Am. 56, 1784 (1966).

D. L. MacAdam, J. Opt. Soc. Am. 54, 249 (1964).

D. L. MacAdam, J. Opt. Soc. Am. 54, 1161 (1964).

D. L. MacAdam, J. Opt. Soc. Am. 55, 91 (1965).

D. L. MacAdam, Official Digest, Journal of Paint Technology, 37, 1488 (1965).

D. L. MacAdam, Acta Chromatica 1, (4) 1 (1965).

L. Silberstein and D. L. MacAdam, J. Opt. Soc. Am. 35, 32 (1945).

D. L. MacAdam, J. Opt. Soc. Am. 47, 268 (1957).

Silberstein, L.

L. Silberstein and D. L. MacAdam, J. Opt. Soc. Am. 35, 32 (1945).

Other (12)

L. F. C. Friele, Die Farbe 10, 193 (1961).

D. L. MacAdam, J. Opt. Soc. Am. 54, 249 (1964).

D. L. MacAdam, J. Opt. Soc. Am. 54, 1161 (1964).

D. L. MacAdam, J. Opt. Soc. Am. 55, 91 (1965).

D. L. MacAdam, Official Digest, Journal of Paint Technology, 37, 1488 (1965).

D. L. MacAdam, Acta Chromatica 1, (4) 1 (1965).

L. F. C. Friele, J. Opt. Soc. Am. 55, 1314 (1965).

L. F. C. Friele, J. Opt. Soc. Am. 56, 259 (1966).

D. L. MacAdam, J. Opt. Soc. Am. 56, 1784 (1966).

L. Silberstein and D. L. MacAdam, J. Opt. Soc. Am. 35, 32 (1945).

D. L. MacAdam, J. Opt. Soc. Am. 47, 268 (1957).

A complete set of comparison ellipses has been deposited as Document number 9298 with the ADI Auxiliary Publications Project, Photoduplication Service, Library of Congress, Washington, D. C. 20540. A copy may be secured by citing the Document number and by remitting $3.75 for photoprints, or $2.00 for 35 mm microfilm. Advance payment is required. Make checks or money orders payable to: Chief, Photoduplication Service, Library of Congress.

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