Quote:
Originally Posted by ballaratdragons
What's 'summed' and 'averaged'?  |
These are different ways to add images together. The process used is to align the individual frames creating new aligned images and then each frame needs to be added together. This can be as a simple summing of the data or the data can be averaged. There are lots of other methods as well.
Some of the methods are summarised in
http://www.astrosurf.com/buil/iris/t.../doc121_us.htm
This is specific to Iris but the principle is the same.
I haven't loooked at "deep sky stacker" but registax uses an averaging process of some type rather than summing the data.