Ngc 3372

[atalas]

My NGC 3372 after noise reduction.

Louie :)

[atalas]

Some strange effects in there.

Louie:confuse3:

[EddieT]

Hi Louie,
Not sure what you used for noise reduction, but it looks like some sharpening has been applied as well?

If you can, try noise reduction without sharpening. Also did you reduce the noise on your master image? There looks like some compression artefacts there as well but these could just be from the jpg compression.

Noise reduction in general is a good thing but usually requires some tweaking specific to individual images to get a cleaner image without introducing features.

In general, the best noise reduction is more or longer exposures. You may still have noise but there will be less to process out requiring less aggressive software reduction.

[atalas]

Hi Eddie, no wasn't the master image I used that noise reduction link from Dennis and the image had been compressed down to 70k from the origanal 420k .


Louie :cool3: