A helper to test whether the foreground signal is statistically higher than the background.
Usage
myt(data, minDiff)
Arguments
data
Numeric vector. The 1-dimensinal signal of log(foreground) - log(background).
minDiff
Float. The mu_hat of the H0: image-to-noise ratio =
log(foreground_signal) - log(background_signal) = mu_hat. Rejection of H0
implies that the identified spot is brighter than background.