This subsection details the image processing procedure used in our software to prepare the image for optimal analysis by the OCR\footnote{see section 4.2 on OCR}. To achieve this, we pass the image through several steps before sending it to the OCR.

\subsubsection{Transforming pixels to grayscale}
\input{sections/partie-technique/traitement-image/pixel-grayscale/pixel-grayscale}

\subsubsection{Transforming pixels to black and white}
\input{sections/partie-technique/traitement-image/pixel-baw/pixel-baw}
\newpage

\subsubsection{Transforming the image to grayscale}
\input{sections/partie-technique/traitement-image/image-baw/image-baw}

\subsubsection{Examples}
\input{sections/partie-technique/traitement-image/examples/examples}
