deletions | additions       diff --git a/section_Texton_based_Approaches_label__.tex b/section_Texton_based_Approaches_label__.tex  index 62f76bd..5e845f6 100644  --- a/section_Texton_based_Approaches_label__.tex  +++ b/section_Texton_based_Approaches_label__.tex 
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just of the \emph{What}, which might result in different areas with  similar histograms.  \citeauthor{de2009design} use the texton approach textons as image features  for distinguishing between three height classes during flight~\cite{de2009design}. Using  a nearest neighbor classifier, their approach achieves a height  classification error of approximately 22\,\% on a hold-out test set.