The name of the dataset to contain the background-smoothing convolver. The name of the dataset to contain the source-detection convolver. The size of the detection box = 2*detboxhalfsize+1. detboxhalfsize in [0:] The width of the smoothing gaussian. smoothsigma in (0:] Shape of the non-zero field for the source-detection convolver. Functional form of the source-detection convolver. Likelihood cutoff for calculation of matched detection convolver. likemin in (0:] Background level (counts/pixel) for calculation of matched detection convolver. bkg in (0:]