Noise after background extraction

Software Siril
1

Hello everyone,

I just started using Siril for stacking and processing. After watching some videos about how to use it, i started processing the image. First i applied autostretch and the second step was using the background extraction-tool. The problem is, when using this tool, the image seems to get very noisy. What can cause this problem and is it possible to solve this? I use all sorts of frames, so lights, darks, flats and biases. Below the link to some screenshots.

2 Items

Thanks

2

As you said, it looks like. But in fact it is not, or at least not visible.
But you look your image in autostretch mode that automatic adjust with regards to statistics.