help with removal of hot pixels

[BMartin]

Greetings
New to Pixinsight and am very impressed but .... Despite running the pre-processing script with bias made from 100 bias frames and dark from 80 darks my final images always show a significant number of hot pixels.  I have tried using a cosmetic correction but it seems to do very little.  I have attached a representative frame - a processed Rfilter image of NGC7331.  This has had deconvolution and noise reduction applied.  Any assistance would be greatly appreciated.

THanks

Brian Martin

[Geoff]

Are you dithering your exposures? If you do, then data rejection from ImageIntegration should clean them up.
Geoff

[CharlesW]

David Ault created this Pixel Math process that works extremely well for me. Took a little while to figure out where to plug in the expressions. It's all I use now. http://trappedphotons.com/files/Presentations/Advanced%20PixInsight%20PixelMath%20Operations.pdf

Look around page 14.

[BMartin]

Thanks to Charles and Geoff for the helpful suggestions and link!  Hot pixels be gone!