Binary image 
When I draw rectangle it gives me rectangle with maximum height.
I dont want to use
enter code here epsilon = 0.1*cv2.arcLength(contour_value, True)
contour_value = cv2.approxPolyDP(contour_value, epsilon, True)
Can anyone tell me best way to iterate the image and remove below extra contour or give me a way to iterate contour and approximate it manually. Thanks.