Red Spots

[Farzad_k]

Hello.

The attached is a simple snapshot of an RGB combined. The red halos are actually star objects. I have processed this in BPP. Why should these particular stars look this way? The subs ar 120 seconds each, and 15 subs each channel.

Thanks for any ideas.

Farzad

[pfile]

did you use MaskedStretch or ArcsinhStretch?

rob

[Farzad_k]

No I didn't. But just a minute ago I found a discussion on PI about the same issue and apparently the culprit is if the Chrominance noise reduction is enabled at LRGB combination. I deselected that and it worked.

Thanks for replying.

Farzad

[msmythers]

Farzad

Are you using LRGBCOmbination on stretched or linear images. The tool is not designed to work with linear images if you are. Here is a posting about that.

https://pixinsight.com/forum/index.php?topic=2485.0


Mike

[Farzad_k]

Mike,

LRGB combination happens on nonlinear images. I have already figured out that I need to deselect chrominance noise reduction when I do L+RGB combination and it has now been working for me. Thanks.