Source Files: Dan Posey
Processing: Doug MacDonald
Linear Processing:
- 43 darks integrated to master dark
- 88 bias integrated to master bias
- 84 flats, calibrated with master dark and master bias, integrated
- 51 light frames blinked, eliminated 3 frames for poor SNR
- 48 lights integrated with master dark, master bias, master flat
- 48 lights debayered
- 69 hot/cold pixels removed with Cosmetic Correction
- lights weighted and ranked with Subframe Selector
- lights registered with Star Align
- Local Normalization applied and 48 frames stacked and integrated
Post Processing:
- Minor crop
- Dynamic Background Extraction (DBE) to remove minor gradient
- Background Neutralization
- Colour Calibration
- Deconvolution to tighten stars, reveal nebular details
- Multiscale Linear Transform (MLT) for initial noise reduction
- Non-linear transform combining 50% each of Histogram Transform and Masked Stretch
- Several curves adjustments to enhance contrast and saturation
- TGVDenoise for final noise reduction
- Minor sharpening with Unsharp Mask.