diff --git a/src/image_cv.cpp b/src/image_cv.cpp
index 56dbdc5..6f44e45 100644
--- a/src/image_cv.cpp
+++ b/src/image_cv.cpp
@@ -69,10 +69,12 @@ cv::Mat image_binerize(cv::Mat &frame)
     cv::cvtColor(frame, hsvImage, cv::COLOR_BGR2HSV);
     cv::split(hsvImage, hsvChannels);
 
-    cv::threshold(hsvChannels[0], binarizedFrame,
-                  0, 255, cv::THRESH_BINARY_INV | cv::THRESH_OTSU);
-    cv::threshold(hsvChannels[1], output,
-                  0, 255, cv::THRESH_BINARY_INV | cv::THRESH_OTSU);
+    cv::adaptiveThreshold(hsvChannels[0], binarizedFrame, 255,
+                           cv::ADAPTIVE_THRESH_GAUSSIAN_C,
+                           cv::THRESH_BINARY_INV, 11, 2);
+    cv::adaptiveThreshold(hsvChannels[1], output, 255,
+                           cv::ADAPTIVE_THRESH_GAUSSIAN_C,
+                           cv::THRESH_BINARY_INV, 11, 2);
 
     cv::bitwise_or(output, binarizedFrame, output);