List of input images. List of input background maps. Whether to input a detection mask. Detection mask. Sources will not be sought in unmasked areas of the images. The size of the detection box = 2*boxhalfsize+1. boxhalfsize in [0:] Whether to output a mask of pixels where the bkgmap was lt 0. Map of bad pixels. Whether to output a likelihood image. Nett likelihood image. Whether to delete confused sources. Whether to add sources to an old list or start a new list. List of sources. Likelihood cutoff. Source candidates below this are discarded. likemin in (0:] Dithers all non-zero counts to within +- 0.5 (for test purposes).