Fundamentals · PixInsight
MultiscaleGradientCorrection (MGC)
MultiscaleGradientCorrection (MGC) compares the image with a reference map of the sky (MARS). Structures smaller than a selectable scale are …
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Workshop · PixInsight
Narrowband workflow (HOO/SHO)
Processing narrowband data from a monochrome camera – Ha and OIII for HOO, plus SII for SHO – from stacking to export. The stars come either …
Fundamentals · PixInsight
NoiseXTerminator (NXT)
NoiseXTerminator (NXT) removes noise and, if desired, separates fine-scale from large-scale noise as well as brightness noise from colour …
Workshop · PixInsight
OSC workflow with a quad band-pass filter
Processing exposures from a colour camera (OSC) with a quad band-pass filter such as the Optolong L-QEF – from stacking to export. The …
Fundamentals · PixInsight
PixelMath
PixelMath applies a formula to every pixel. Images are referenced by their IDs. This lets you combine channels into colour images, blend …
Fundamentals · PixInsight
RangeSelection (Range Mask)
RangeSelection creates a mask (a “range mask”) that selects a brightness range. This limits a global process – such as a curve – …
Fundamentals · PixInsight
SCNR
SCNR (Subtractive Chromatic Noise Reduction) limits one colour channel, usually green, to the level of the other two. This corrects greenish …
Fundamentals · PixInsight
SpectrophotometricColorCalibration (SPCC)
SpectrophotometricColorCalibration (SPCC) uses Gaia spectra to compute how each star should appear through the filters and sensor used, …
Fundamentals · PixInsight
StarXTerminator (SXT)
StarXTerminator (SXT) removes the stars from an image and, if requested, also delivers an image containing only the stars. Nebula and stars …
Fundamentals · PixInsight
Synthetic luminance
A synthetic luminance is built from existing channels instead of being captured with an L filter. It carries structure and sharpness; the …