Graph or calculate sensor SNR (dB) as a function of illuminance (lux-sec)
[snr,luxsec,SNRshot, SNRread] = pixelSNRluxsec(ISA)
If there are no output arguments, this routine produces a graph of pixel
SNR as a function of lux-sec incident at the pixel. It also adds curves
indicating the SNR limits imposed by shot noise and by read noise.
If there are output arguments, no graph is returned.
This routine uses the same calculation as described in pixelSNR,
differing only by calculating the illuminance level (lux-sec) required to
produce the specific voltage. The key routine for calculating that
relationship is pixelVperLuxSec (see below).
See also: sensorSNR, pixelSNR, pixelVperLuxSec
Example:
pixelSNRluxsec(vcGetObject('sensor'));
[snr,luxsec] = pixelSNRluxsec(vcGetObject('sensor'));
Copyright ImagEval Consultants, LLC, 2003.