diff --git a/README.md b/README.md
index 55bf40b249a4966de10a7d9ce65e9a12659625b0..dab7971e0af1eca81e0d0bc0f29093f028888e62 100644
--- a/README.md
+++ b/README.md
@@ -92,3 +92,8 @@ Related to Drone, ...
 
 * https://github.com/kotarot/Proken-Drone2017
 
+Related to OpenCV, ...
+
+* http://r-dimension.xsrv.jp/classes_j/opencv-for-processing/
+* https://qiita.com/TaitoOtani/items/d71aa838fcbb0a4fcd1f
+