I have a new camera (ZWO ASI2600MC) and I am having a hard time eliminating some hot pixel streaks in the resulting calibrated/stacked image. Despite using matching master dark, bias and flat frames, and using CosmeticCorrection I still get lots of streaks in the stacked image, as seen in the attached image.
My workflow is
Calibrate Lights with master Bias/Dark/Flat
CosmeticCorrection
Debayer
StarAlignment
ImageIntegration (LinearFit clipping)
The attached image is what I get.
Some additional notes:
-I have stacked the images without using CosmeticCorrection and the result is only slightly worse that using CC.
-I have tried adjusting the CC hot pixel count anywhere from 3000 to 150,000. The image appears somewhat better at around 60,000 but anything beyond that gives me strange results in the stacked image.
-I also have an ASI6200MM that uses an identical sensor (just bigger). If I don't use CC or rejection stacking then the resulting integrated image has identical looking hot pixel streaks. However, normal processing (my typical workflow above) results in the hot pixels being almost completely eliminated.
-I have tried using flatdarks to calibrate the flats instead of bias. Same result.
I really have no idea why these hot pixels are not being eliminated with CC, so any advice would be much appreciated.
My workflow is
Calibrate Lights with master Bias/Dark/Flat
CosmeticCorrection
Debayer
StarAlignment
ImageIntegration (LinearFit clipping)
The attached image is what I get.
Some additional notes:
-I have stacked the images without using CosmeticCorrection and the result is only slightly worse that using CC.
-I have tried adjusting the CC hot pixel count anywhere from 3000 to 150,000. The image appears somewhat better at around 60,000 but anything beyond that gives me strange results in the stacked image.
-I also have an ASI6200MM that uses an identical sensor (just bigger). If I don't use CC or rejection stacking then the resulting integrated image has identical looking hot pixel streaks. However, normal processing (my typical workflow above) results in the hot pixels being almost completely eliminated.
-I have tried using flatdarks to calibrate the flats instead of bias. Same result.
I really have no idea why these hot pixels are not being eliminated with CC, so any advice would be much appreciated.