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RegressAgainstPreviousStep
==========================

This step provides a simple way to see how the processing has changed between versions. It will loop over and produce
difference images between the current version and the named previous version, so you can see what has changed (and by
how much).

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API
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.. autoclass:: pjpipe.RegressAgainstPreviousStep
    :members:
    :undoc-members:
    :noindex: