Author Topic: Need a process to reduce cyan stars in Pixel Math  (Read 504 times)

Offline dkahraman

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Need a process to reduce cyan stars in Pixel Math
« on: 2019 September 22 15:27:29 »
While I am aware of the magenta reduction process I would like help in the same to reduce cyan stars caused by an achromatic lens.

Offline pfile

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Re: Need a process to reduce cyan stars in Pixel Math
« Reply #1 on: 2019 September 22 16:46:33 »
perhaps use ColorMask set to cyan - if there is no other cyan in the image then it may create a mask only exposing the cyan stars. if there are more cyan structures you can create a starmask and multiply the two masks together with pixelmath.

or maybe invert the image and then do SCNR to red, then invert the image again... i think red is the complement of cyan.

rob