diff --git a/BoundingBoxAugmenters.py b/BoundingBoxAugmenters.py
index 9a5ac16..76e461c 100755
--- a/BoundingBoxAugmenters.py
+++ b/BoundingBoxAugmenters.py
@@ -382,12 +382,14 @@ def horizontalFlip(self, frame = None, boundingBoxes = None):
 			raise TypeError("ERROR: Bounding boxes parameter has to be of type list.")
 		# Local variables
 		localFrame = frame[:, :, :]
+		# Copy of Local variables
+		tmpFrame = localFrame.copy()
 		# Flip only the pixels inside the bounding boxes
 		for bndbox in boundingBoxes:
 			# Decode bounding box
 			ix, iy, x, y = bndbox
 			# Flip ROI
-			roi = cv2.flip(localFrame[iy:y, ix:x, :], 1)
+			roi = cv2.flip(tmpFrame[iy:y, ix:x, :], 1)
 			localFrame[iy:y, ix:x, :] = roi
 		return localFrame
 
@@ -410,12 +412,14 @@ def verticalFlip(self, frame = None, boundingBoxes = None):
 			raise TypeError("ERROR: Bounding boxes parameter has to be of type list.")
 		# Local variables
 		localFrame = frame[:, :, :]
+		# Copy of Local variables
+		tmpFrame = localFrame.copy()
 		# Flip only the pixels inside the bounding boxes
 		for bndbox in boundingBoxes:
 			# Decode bounding box
 			ix, iy, x, y = bndbox
-			# Flip ROI
-			roi = cv2.flip(localFrame[iy:y, ix:x, :], 0)
+			# Flip ROI in Local variables
+			roi = cv2.flip(tmpFrame[iy:y, ix:x, :], 0)
 			localFrame[iy:y, ix:x, :] = roi
 		return localFrame
 
diff --git a/BoundingBoxAugmenters_test.py b/BoundingBoxAugmenters_test.py
index afe9c62..36ddaa2 100755
--- a/BoundingBoxAugmenters_test.py
+++ b/BoundingBoxAugmenters_test.py
@@ -179,7 +179,7 @@ def test_horizontal_flip(self):
 
 	def test_vertical_flip(self):
 		if (self.visualize):
-			# Perform horizontal flip.
+			# Perform vertical flip.
 			frame = self.augmenter.verticalFlip(frame = self.frame.copy(),
 																						boundingBoxes = self.bndboxes)
 			# Visualization.