Data matrix. The location statistics of one channel.
centerG
Data matrix. The location statistics of the other channel.
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. Default is 0.5.
chaImgs
List. A list of the channel images (data matrices) of a sample.