Astrophotography
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Editing
- Import tif, image->mode->16bit
- Select target area, inverse, filter -> rc astro-> gradient -> middle + bottom
- Magic wand, select everything; select ->load->subtract, filter -> rc astro-> gradient -> top + top
- levels -> move black slider to just left of histogram start point, grey a bit left (120)
- repeat as neccessary, watch for noise
- Curves: use finger button to select medium point in sky, everything above that will be brightened
- select another anchor point right above, 4 or so more, then adjust
- Filter -> Noise and Sharpen