Luminance mapping - Radiance Workshop 2003
Santiago Torres – The University of Tokyo
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Luminance mapping
Calibration
In order to use the mapping in daylighting
simulations, the input data must be numerically accurate. This implies 3
calibrations:
n Geometry of the fish-eye lens
f Relationship between incident angle and
position in the image
n Luminance response of the CCD
f Pixel value relative to exposure and
luminance
f Effect of light color
f Effect of incident direction on the
fish-eye lens
n Luminance response using ND filters for
sun
by
AMcneil
– last modified
Feb 29, 2016 12:26 PM