For the lux algorithm, reference values get calculated based on a tuning
image taken at a known lux level. The reference data contains the mean Y
of the image, lux level, exposure time, gain and aperture. This module
calculates these values for insertion into the tuning file.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
