.. _Tutorial5:

Tutorial 5 - Birefringent Discs
===============================

Watch the video:

**N.B. Please note that the "remove_masked" postprocessing method referred to is now included as a drop
down in the hough tracking method's param selectors.**

.. raw:: html

   <iframe width="560" height="315" src="https://www.youtube.com/embed/849xglS3iIY" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write;      encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> 

:ref:`Tutorial 6 <Tutorial6>`