| 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: |
 Click here to retrieve PDF version of paper (1MB) |
