Question <p>Which function is used to perform image smoothing or blurring in OpenCV?</p>

Option 1 <p>cv2.threshold()</p>

Option 2 <p>cv2.blur()</p>

Option 3 <p>cv2.detectEdges()</p>

Option 4 <p>cv2.rotateImage()</p>

Correct Answer Option 1 Option 2 Option 3 Option 4