StarHaloReducer script

[Nigel Ball]

I've been using the StarHaloReducer script to get rid of some rather large halos in a Ha image of IC443.

Here's my problem. No matter how much I fine tune the settings I always get a dark line around the edge of where the halo was

Does anybody else get this?

[Silvercup]

Hi Nigel, sorry for the late answer but I have a lot of work and developing and ASCOM driver.

When you got dark halos you are darken too much the background's Halo. StarHaloReducer is more efective with a iterative aplication. I.e. it's better appliying 3 times with smal amounts than 1 with more amount.

Althought you don't notice de difference between images, when you run script 3 times you will see the difference from original.

If you upload a image with the halo, I can try to find the settings.

Best, Silvercup