diff --git a/cnam/travaux/probatoire/images/artifacts.png b/cnam/travaux/probatoire/images/artifacts.png
new file mode 100644
index 0000000..a259a60
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diff --git a/cnam/travaux/probatoire/images/gaussian.png b/cnam/travaux/probatoire/images/gaussian.png
new file mode 100644
index 0000000..27739f6
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diff --git a/cnam/travaux/probatoire/images/histogram.png b/cnam/travaux/probatoire/images/histogram.png
new file mode 100644
index 0000000..b22bfff
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diff --git a/cnam/travaux/probatoire/images/median.png b/cnam/travaux/probatoire/images/median.png
new file mode 100644
index 0000000..b9e21fa
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diff --git a/cnam/travaux/probatoire/images/medianb.png b/cnam/travaux/probatoire/images/medianb.png
new file mode 100644
index 0000000..b7d128e
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diff --git a/cnam/travaux/probatoire/images/noise.png b/cnam/travaux/probatoire/images/noise.png
new file mode 100644
index 0000000..1964581
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diff --git a/cnam/travaux/probatoire/présentation/principles.tex b/cnam/travaux/probatoire/présentation/principles.tex
index 882b48d..21321c9 100644
--- a/cnam/travaux/probatoire/présentation/principles.tex
+++ b/cnam/travaux/probatoire/présentation/principles.tex
@@ -212,6 +212,11 @@
 
 \end{column}\begin{column}{.5\textwidth}
 
+\only<1>{\imgh{0}{19}{gaussian}}
+\only<2>{\imgh{0}{20}{noise}}
+\only<3>{\imgh{0}{20}{artifacts}}
+\only<4>{\imgh{0}{17.5}{histogram}}
+\only<5>{\imgh{0}{20}{median}}
 
 \end{column}\end{columns}
 \end{frame}