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Publication Citation: A rational methodology for estimating the luminous flux based upon color primaries from digital projection displays

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Author(s): Edward D. Kelley; Karl Lang; Louis D. Silverstein; Michael H. Brill;
Title: A rational methodology for estimating the luminous flux based upon color primaries from digital projection displays
Published: January 01, 2009
Abstract: A standard methodology exists for estimating the flux from front projection displays by sampling the projected illuminance of a white source signal. With the advent and use of white projection primaries, a dramatic increase in flux can be achieved over the red, green, and blue primaries alone. However, saturated-color areas in an image are constrained to low flux levels relative to the display maximum, and hence bright colors cannot be rendered accurately. Because the display of color-accurate imagery does not generally use the white primary, there is a need for providing an equivalent flux measurement that will better describe a projectors color performance when rendering full color imagery. Background research and a method utilizing the source-signal color primaries is described.
Citation: NIST Interagency/Internal Report (NISTIR) - 6657
Pages: 29 pp.
Keywords: color accuracy; color output; color perception; color rendering; display measurement; display metrology; ICDM Display Measurements Standard; IEC 61947-1; ISO 21118; light output; front projector, flux measurement, projection display; sampled luminous flux measurement; white primary; white subpixel
Research Areas: Display Metrology, Measurements
PDF version: PDF Document Click here to retrieve PDF version of paper (1MB)