Python OpenCV | cv2.arrowedLine () method

OpenCV-Python — is a Python bindings library for solving computer vision problems. 
cv2.arrowedLine () is used to draw an arrow segment pointing from start point to end point.

Syntax: cv2 .arrowedLine (image, start_point, end_point, color [, thickness [, line_type [, shift [, tipLength]]]])

Parameters:
image: It is the image on which line is to be drawn.
start_point: It is the starting coordinates of line. The coordinates are represented as tuples of two values ​​ie ( X coordinate value, Y coordinate value).
end_point: It is the ending coordinates of line. The coordinates are represented as tuples of two values ​​ie ( X coordinate value, Y coordinate value).
color: It is the color of line to be drawn. For BGR , we pass a tuple. eg: (255, 0, 0) for blue color.
thickness: It is the thickness of the line in px .
line_type: It denotes the type of the line for drawing.
shift: It denotes number of fractional bits in the point coordinates.
tipLength: It denotes the length of the arrow tip in relation to the arrow length.
Return Value: It returns an image.

The image is used for all the examples below:

Example No. 1:

# Python program to explain the cv2.arrowedLine () method   # cv2 import import cv2    # path path = r ’ C: UsersAtomixDesktoppythonengineeringgeeks.png’   # Read the image in default mode image = cv2. imread (path)    # Name of the window in which the image is displayed window_name = ’Image’   # Starting coordinate, here (0, 0) # represents the top left corner of the image start_ point = ( 0 , 0 )     # End coordinate end_point = ( 200 , 200 )     # Green in BGR color = ( 0 , 255 , 0 )     # Line width 9 px < code class = "plain"> thickness = 9    # Using the cv2.arrowedLine () method # Draw a green arrow diagonal line # 9px thick image = cv2.arrowedLine (image, start_point, end_point,   color, thickness)    # Display image cv2.imshow (window_name, image)

Output:

Example # 2:

# Python program to explain the cv2.arrowedLine () method   # cv2 import import cv2    # path path = r ’ C: UsersAtomixDesktoppythonengineeringgeeks.png’   # Read image in default mode image = cv2.imread (path)    # Name of the window in which the image is displayed window_name = ’Image’    # Starting coordinate, here (225, 0) # represents the top right corner of the image start_point = ( 225 , 0 )    # End coordinate end_point = ( 0 , 90 )    # Red color in BGR color = ( 0 , 0 , 255 )    # 9 px line thickness thickness = 9   # Using the cv2.arrowedLine () method # Draw a red arrow line # 9px thick and tipLength = 0.5 image = cv2.arrowedLine (image, start_point, end_point,  color, thickness, tipLength = 0.5 )    # Display image cv2.imshow (window_name, image)

Output: