backsub - subtracts the background off an Ultracam frame

backsub subtracts the background off each window of an Ultracam frame. This is a routine used to get rid of the background without having to identify an appropriate bias frame.

Invocation

backsub input centile output

Arguments

!!table input---Input frame centile---Centile to use as the background (0 to 100) output---Output frame

Classes

This command is a member of the classes: Arithematic, Programs.

Author: T.R. Marsh
Created: 07 Mar 2006