Solar Noise Reduction

[Scooot]

I took my first solar image with my scope of the Transit yesterday, just a single frame.

I used the MultiscaleLinearTransformation for noise reduction on the background, with the linear mask inverted by the process, before I stretched it. Would it be normal to apply it to the solar disk itself as well, with the background masked, perhaps to a lessor degree. If so can anyone suggest some settings.

Many thanks for any advice.

[Juan Conejero]

Would it be normal to apply it to the solar disk itself as well, with the background masked

That would be perfectly acceptable in this case IMO. You can use any intensity transformation to build the mask, as HistogramTransformation or CurvesTransformation. But RangeSelection (MaskGeneration category) will probably be easier.

[Scooot]

Thank you juan,

The inverted mask that the MultiscaLinearTransformation produced worked quite well when I applied the process to just the background. I did this because when I stretched the image without any noise reduction the background looked awful. However by applying noise reduction to the background only seems to have created a passable image, in my eyes anyway, considering it was a single frame. So I was just wondering whether noise recuction on the disk would help much more and whether it would be normal to do this when processing solar images. Have to just try it I suppose.