Processing the Data

  Having obtained some background, let us now start to process the input frames according to the scheme in Section . As indicated in that section the reduction sequence consists, in a simplified version, of the following steps:

1. determine overscan correction and trim area;
2. preparing calibration frames;
3. do the corrections;
4. apply the bad pixel corrections.

• How the Data is Processed
• Running REDUCE/CCD
  • Overscan correction and trimming
  • Bias, Dark and Flat Field Correction