DBE and cleanup question

Phil Misiowiec

Attached is a Telescope.live linear RGB image of Barnard 33. There is a horrendous amount of green in there that you don't see because I de-saturated that color in the STF panel. A couple of questions:

1. There is a ton of nebulosity in the foreground (beneath the horsehead) and behind it (above). Is DBE even practical to apply here? And if so, should I limit it it to the extreme edge (with the darker purple hues)?

2. I could not calibrate out the light streaks (caused by light leaks? not sure) on the lower left of the image. There aren't many frames to begin with (10 each per filter). The easy way to eliminate them is to desaturate the blue channel until they disappear. Do you have any other recommendations for dealing with them?

Thanks,

Phil

BlockHead

This image is strongly biased in blue (probably due to Alnitak unless you did this with the moon in the sky.)

The areas between the reds (where it is strongly blue) are the neutral regions. The horsehead is also mostly neutral in color. You certainly have enough regions to sample and remove the blue bias/gradient. 

The scattered light from Alnitak is difficult and virtually impossible to get rid of in any clever way if it exists in all frames.

-the Blockhead