diff --git a/traffic_analyzer/white_mask.py b/traffic_analyzer/white_mask.py
new file mode 100644
index 0000000..dd4dbe6
--- /dev/null
+++ b/traffic_analyzer/white_mask.py
@@ -0,0 +1,47 @@
+import cv2
+import time
+import numpy as np
+
+cap = cv2.VideoCapture(1)
+
+def threshold_slow(image):
+    h = image.shape[0]
+    w = image.shape[1]
+    for y in range(0, h):
+        for x in range(0, w):
+            if np.any(image[y, x] != 0):
+                return True
+
+    return False
+
+while True:
+    ret, frame = cap.read()
+    frame_org = frame
+    frame = frame[100:300, 100:300]
+    hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
+    sensitivity = 40
+    lower_white = np.array([0,0,255-sensitivity])
+    upper_white = np.array([255,sensitivity,255])
+    mask = cv2.inRange(hsv, lower_white, upper_white)
+    res = cv2.bitwise_and(frame,frame, mask=mask)
+
+    res = cv2.erode(res, None, iterations=2)
+    res = cv2.dilate(res, None, iterations=4)
+
+    mask = cv2.erode(mask, None, iterations=2)
+    mask = cv2.dilate(mask, None, iterations=4)
+
+    if threshold_slow(res):
+        cv2.rectangle(frame_org, (100, 100), (300, 300), (255, 0, 0), 2)
+
+    cv2.imshow('frame', frame)
+    cv2.imshow('org', frame_org)
+    cv2.imshow('mask', mask)
+    cv2.imshow('res', res)
+
+    k = cv2.waitKey(5) & 0xFF
+    if k == ord('q'):
+        break
+
+cap.release()
+cv2.destroyAllWindows()
\ No newline at end of file