Quote:
Originally Posted by glend
Perhaps a registration issue. All the green and red problems have the same orientation, which seems to suggest they are not stacked correctly.
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Thanks Glen, I’m not sure....I tried re calibrating and registering with the same results. The “hot” spots only appear in the red and green subs?
Erik
Quote:
Originally Posted by RickS
Hi Erik,
Looks like a combination of hot pixels and the interpolation algorithm creating ringing artefacts around them.
Assuming you're using PI, try CosmeticCorrection with a master dark or auto detect to clean up the subs after calibration and before registration. If you still have a few hot pixels left and registration makes them even uglier, you can adjust the clamping parameter in StarAlignment. If that doesn't work then try a different interpolation algorithm that doesn't create ringing, like Bilinear.
Cheers,
Rick.
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Hi Rick, thank you. Yes using PI. I’ll the functions you suggested in the morning and let you know I go. Thanks.
Erik