detected mask inverted

camera_streaming/camera_subscriber.py

@@ -186,6 +186,7 @@ class CameraSubscriber(Node, MissionExecutor):
             npimg = np.frombuffer(img, dtype=np.uint8)
             img = cv2.imdecode(npimg, cv2.IMREAD_COLOR)
             mask = detect_red(img)
+            mask = cv2.bitwise_not(mask)
             img = cv2.bitwise_and(img, img, mask=mask)/256
             host_id = self.hosts[host]
             place = (

camera_streaming/detect.py

@@ -20,7 +20,4 @@ def detect_red(img):
 
     mask = cv2.morphologyEx(mask, cv2.MORPH_OPEN, np.ones((3, 3), np.uint8))
     mask = cv2.morphologyEx(mask, cv2.MORPH_DILATE, np.ones((3, 3), np.uint8))
-
-    # creating an inverted mask
-    mask_black = cv2.bitwise_not(mask)
-    return mask_black
+    return mask