Compute photometric exposure (lux-sec) for a sensor and optical image
PE = photometricExposure(oi,sensor)
The photometric exposure is the product of the mean illuminance in
the optical image (sensor illuminance, lux) and the exposure duration
(sec). The value accounts for the scene luminance and the optics and the
sensor exposure duration.
Example
photometricExposure
Copyright ImagEval Consultants, LLC, 2005.