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NGC2237, Obdulio Garcia-Nicolas
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NGC2237

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NGC2237, Obdulio Garcia-Nicolas
Powered byPixInsight

NGC2237

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Comments

Revisions

  • NGC2237, Obdulio Garcia-Nicolas
    Original
  • NGC2237, Obdulio Garcia-Nicolas
    B
  • NGC2237, Obdulio Garcia-Nicolas
    C
  • NGC2237, Obdulio Garcia-Nicolas
    E
  • Final
    NGC2237, Obdulio Garcia-Nicolas
    F

C

Description: I tried to better calibrate the color, and keep the green from the Ha channel, as I felt kind of pitty trying to get rid of the color, as it still being data as I did in the very first version

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E

Description: It seems like I am never happy with the results. I try to improve the analysis in every step as much as possible. So much still to learn... CS

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F

Description: Revision of the previous version. First I applied BlurXterminator, then GeneralizedHyperbolicStretch for each channel image as I am normally doing. Then I tried the Dynamic blending as previously described here: https://thecoldestnights.com/2020/06/pixinsight-dynamic-narrowband-combinations-with-pixelmath/

However, I did something different, instead of only generating a single image to use it as a dynamic factor I made 3, one for each channel (s for SII; h for Ha, and o for OIII). Then using pixel math used the specific dynamic factor image for the corresponding channel (R: SII*s + ~h*Ha; G: Ha*h + ~o*OIII; B: OIII). Then I removed the stars with StarXterminator and continued with the normal analysis I am doing with the background neutralization, color balance, local Histogram Equalization, HDRMultiscaleEqualization, final curves adjustments, stars go back then the DarkStructureEnhance script and the image is finished.

Doing it like that I found out to get a better signal for SII in an SHO blending compared to a classic SHO combination without the need of decreasing the value of the predominant Ha signal.

Clear skies

Obdulio

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NGC2237, Obdulio Garcia-Nicolas

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