diff --unified --recursive --text package.orig/vision_opencv-1.13.0/image_geometry/CMakeLists.txt package.new/vision_opencv-1.13.0/image_geometry/CMakeLists.txt
--- package.orig/vision_opencv-1.13.0/image_geometry/CMakeLists.txt	2020-05-21 15:32:19.474961287 +0200
+++ package.new/vision_opencv-1.13.0/image_geometry/CMakeLists.txt	2020-05-21 15:32:33.155009735 +0200
@@ -2,7 +2,7 @@
 project(image_geometry)
 
 find_package(catkin REQUIRED sensor_msgs)
-find_package(OpenCV REQUIRED)
+find_package(OpenCV 3 REQUIRED)
 
 catkin_package(CATKIN_DEPENDS sensor_msgs
                DEPENDS OpenCV