deletions | additions       diff --git a/preprocessing.tex b/preprocessing.tex  index 550bf31..2d4f902 100644  --- a/preprocessing.tex  +++ b/preprocessing.tex 
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\section{Preprocess \subsection{Preprocess  -- Debias and Gain} \section{Preprocess \subsection{Preprocess  -- Cosmic Ray Rejection} \section{Preprocess \subsection{Preprocess  -- Background Subtraction} \section{Preprocess \subsection{Preprocess  -- Flat Field Processing}