Before PixInsight and after

Raw data from DSS on the left, and what was pulled out with PixInsight on the right.

 

Shotdate: Januari 9th 2011

Camera: Nikon D3x

Optics: AF VR 80-400mm 1:f4.5-5.6 D

 

22 x 125 sec

 

Stacked in DeepSkyStacker 3.3.2

 

Postprocessing in PixInsight 1.7

 

Workflow:

BackgroundNeutralization

BR : 2.19567e-002

BG : 1.35852e-002

BB : 8.25521e-003

 

DynamicCrop

 

DynamicBackgroundExtraction (with over 350 points!)

 

Start of the semi-HDR function (15 iterations).

 

ChannelExtraction: Extracting lightness

(HistogramTransformation ,when necessery, to keep the background near black).

ATrousWaveletTransform (switched off layer 1, 2 and 3) using layer 4 and R.

 

HistogramTransformation: Masking from swap files... (L)

Used a 0,4 value in the midtones of the HistogramTransformation, the mask is inverted, so the stars are bright red and the nebulosity is just to be seen for each itteration.

 

End of the semi-HDR function.

 

HistogramTransformation to pop up the last bit of the image.

 

ChannelExtraction

ATrousWaveletTransform (switched off layer 1 and 2) using layer 3, 4 and R.

CurvesTransformation: Masking from swap files... (L)

 

ChannelExtraction

CurvesTransformation: Masking from swap files... (L)

 

ChannelExtraction

HistogramTransformation: Masking from swap files... (L)

to bring out some of the darker area's, I used a normal mask.

 

ChannelExtraction

HDRMultiscaleTransform: Layers: 2

Applying large-scale deringing routine on L1

 

HistogramTransformation: L1 bringing out the dark area's

 

HistogramTransformation: Masking from swap files... (L1)

 

ACDNR

 

Last two iterations to bring out some more HDR:

 

ChannelExtraction

HistogramTransformation: L

ATrousWaveletTransform

 

HistogramTransformation: Masking from swap files... (L)

Done