Blinking pixels and cosmic ray removal

[FerreolS]

• Blinking pixels are pixels that show some aberrant values (either too high or too low) for only few frames in the observation. On my opinion, we can not rely on these pixels and they should be flagged as bad pixels
• Cosmic ray affected pixels are a group of pixels exhibiting extremely high values for a single frame in the observation. We should be able to detect and filter them from the observation.

[FerreolS]

If we look at the temporal statistic of single pixels, blinking pixels should show as a non-gaussian distribution of flux with some outliers.
As idea to detect them is to compare their standard deviation and their median absolute deviation (MAD). If these values are too different the pixel should be flagged as bad-pixels

[FerreolS]

If there is a single outlier, the pixel can be considered as cosmic ray and only filtered without being flagged as bad