I have been digging through the available Internet resources, in the languages I know and I have not found a solution, that would satisfy me to solve my problem with very noisy background. After countless hours of intensive work in front of the computer, I developed my own method of subtracting background noise. I’ve performed tests with several frames and surprised me very positively. The method is not perfect, but it is quite simple in itself and the results are so good that I decided to present the processed images, in a slightly different way, than most of my respectable astrophotographers I know. Below, a fragment of a larger frame that opens the topic.
B33 – Horsehead Nebula – crop from bigger frame
- Equipment: ATIK Horizon, Hypergraph TS 420mm f/2,8 OTA PH6, iOptron CEM25p with small self made tuning
- Composition: APP
- Processing: APP + RT + GIMP + add-ons (Linux),
- Lights: 170 x 60[s] (2h 50min.)
- Calibration frames: Flats, Bias, Darks