M33 (r/astrophotography Q4 processing challenge #1), Andrew Genualdi

M33 (r/astrophotography Q4 processing challenge #1)

M33 (r/astrophotography Q4 processing challenge #1), Andrew Genualdi

M33 (r/astrophotography Q4 processing challenge #1)

Equipment

Loading...

Acquisition details

Loading...

Description

Data provided from /u/PixInsightFTW..FINALLY got around to processing it now that I bought PI

Image was captured in LHaRGB and processed in PixInsight 1.8 RC7.

Summary of processing steps:

- Images StarAligned (not sure if this was necessary, but I did it anyway)

- RGB images combined..following formula for R frame (.75R+.15Ha+.1L)

- Image cropped to remove corner gradient, same DynamicCrop applied to L frame

- DBE run on RGB (~65 points)..this data was AMAZINGLY clean, so easy to find quality points at radius of 12. ALL 65 points used radius of 12.

- BackgroundNeutralization and ColorCalibration run using core of the galaxy as the white reference and corner of image as background reference.

- NR via ATWT/SCNR to remove green (very minimal impact, though I think I overdid the ATWT NR on the RGB image as I have some ringing around the stars)

- RGB image stretched using values from STF and applied in HTF.

Same process for L frame, minus BGN and CC.

- Combined LRGB image using .600 lightness and .400 saturation settings.

- Tweaked HTF to darken the BG and make the galaxy stand out a little more.

- Cloned L frame and jacked up the contrast to isolate the galaxy and applied as a mask to LRGB image

- CurvesTransformation to bring out the color via a saturation boost, think I over did it with the pinks as the largest pink area seems slightly blown out.

- Opened up ColorSaturation tool to boost the areas of the image with the most prominent color (blues/redishpurples)

- LocalHistogramEqualization to bring out more detail of the dust lanes/arms.

- StarMask generation and MorphologicalTransformation to reduce the star brightness and make galaxy stand out

- One more NR via TGVDenoise

- Rotated and cropped

Thanks for looking!

Comments

Revisions

  • Final
    M33 (r/astrophotography Q4 processing challenge #1), Andrew Genualdi
    Original
  • M33 (r/astrophotography Q4 processing challenge #1), Andrew Genualdi
    B

Histogram

M33 (r/astrophotography Q4 processing challenge #1), Andrew Genualdi