# Wavelength Calibration API

Arc-lamp analysis, line detection via wavelets, cross-correlation with reference catalogues, polynomial fitting, and spectral rebinning (scrunching). See the [arc calibration theory](../explanations/isoplane-theory.md) for background.

```{eval-rst}
.. automodule:: kspecdr.extract.reduce_arc
   :members:

.. automodule:: kspecdr.wavecal.arc_io
   :members:

.. automodule:: kspecdr.wavecal.calibrate
   :members:

.. automodule:: kspecdr.wavecal.crosscorr
   :members:

.. automodule:: kspecdr.wavecal.landmarks
   :members:

.. automodule:: kspecdr.wavecal.scrunch
   :members:

.. automodule:: kspecdr.wavecal.wavelets
   :members:
```