diff --git a/README.md b/README.md
index 22d4d3a..a5eff73 100644
--- a/README.md
+++ b/README.md
@@ -219,7 +219,7 @@ PlanarianScanner/
 
 Calibration auto
 
-![Aperçu de la vidéo](assets/calibration-auto.jpg)
+![Aperçu de la vidéo](assets/calibration-auto.png)
 ![Regarder la vidéo 🎬](https://www.linuxtarn.org/media/original_videos/calibration-auto.mp4)
 
 
diff --git a/assets/calibration-auto.png b/assets/calibration-auto.png
new file mode 100644
index 0000000..6ecee5c
Binary files /dev/null and b/assets/calibration-auto.png differ