diff --git a/Processing/processing.cpp b/Processing/processing.cpp
index 03ef42a..e76c0d1 100644
--- a/Processing/processing.cpp
+++ b/Processing/processing.cpp
@@ -21,5 +21,6 @@ void Processing::processImage(Mat& inputPicture, int thresholdValue, int gaussKe
 
 std::vector<LFRLine> Processing::calculateLineSegments(const Mat& inputPicture)
 {
+    //https://stackoverflow.com/questions/45322630/how-to-detect-lines-in-opencv
     return std::vector<LFRLine>();
 }