diff --git a/CMakeLists.txt b/CMakeLists.txt
index ce8fdf4..1e99ea6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,6 +77,11 @@ find_package(JPEG REQUIRED)
 include_directories(${JPEG_INCLUDE_DIR})
 target_link_libraries(lycon ${JPEG_LIBRARY})
 
+# OpenCV
+find_package(OpenCV REQUIRED)
+include_directories(${OpenCV_INCLUDE_DIR})
+target_link_libraries(lycon ${OpenCV_LIBS})
+
 # The Python extension
 if (LYCON_BUILD_PYTHON)
   include(cmake/LocatePythonLibs.cmake)
diff --git a/src/lycon/mat/convert.h b/src/lycon/mat/convert.h
index 9f8e4a4..567fc8a 100644
--- a/src/lycon/mat/convert.h
+++ b/src/lycon/mat/convert.h
@@ -1,6 +1,9 @@
 #pragma once
 
 #include "lycon/mat/shared.h"
+#include "opencv2/core/neon_utils.h"
+
+using namespace cv;
 
 namespace lycon
 {
diff --git a/src/lycon/transform/resize.h b/src/lycon/transform/resize.h
index dd6dd10..501fad4 100644
--- a/src/lycon/transform/resize.h
+++ b/src/lycon/transform/resize.h
@@ -1,6 +1,9 @@
 #pragma once
 
 #include "lycon/mat/mat.h"
+#include "opencv2/core/neon_utils.h"
+
+using namespace cv;
 
 namespace lycon
 {