Apply the mask to the given object setting all pixels within the mask to the mask value. The object must be a woolz grey-level object, the mask can be a domain object polyline or boundary list which will be filled to make a domain. The mask is always the second object if read from the standard input.
Examples
WlzGreyMask -m 64 dom.wlz obj.wlz >masked.wlz
Creates a new object mask.wlz which has the same domain and values of obj.wlz, except where the domain of obj.wlz and mask.wlz intersect where the values are set to 64.