Python OpenCV | cv2.arrowedLine() method Last Updated : 04 Jan, 2023 Comments Improve Suggest changes Like Article Like Report OpenCV-Python is a library of Python bindings designed to solve computer vision problems. cv2.arrowedLine() method is used to draw arrow segment pointing from the start point to the 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 i.e. (X coordinate value, Y coordinate value). end_point: It is the ending coordinates of line. The coordinates are represented as tuples of two values i.e. (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. Image used for all the below examples: Example #1: Python3 # Python program to explain cv2.arrowedLine() method # importing cv2 import cv2 # path path = r'C:\Users\Atomix\Desktop\geeksforgeeks\geeks.png' # Reading an image in default mode image = cv2.imread(path) # Window name in which image is displayed window_name = 'Image' # Start coordinate, here (0, 0) # represents the top left corner of image start_point = (0, 0) # End coordinate end_point = (200, 200) # Green color in BGR color = (0, 255, 0) # Line thickness of 9 px thickness = 9 # Using cv2.arrowedLine() method # Draw a diagonal green arrow line # with thickness of 9 px image = cv2.arrowedLine(image, start_point, end_point, color, thickness) # Displaying the image cv2.imshow(window_name, image) Output: Example #2: Python3 # Python program to explain cv2.arrowedLine() method # importing cv2 import cv2 # path path = r'C:\Users\Atomix\Desktop\geeksforgeeks\geeks.png' # Reading an image in default mode image = cv2.imread(path) # Window name in which image is displayed window_name = 'Image' # Start coordinate, here (225, 0) # represents the top right corner of image start_point = (225, 0) # End coordinate end_point = (0, 90) # Red color in BGR color = (0, 0, 255) # Line thickness of 9 px thickness = 9 # Using cv2.arrowedLine() method # Draw a red arrow line # with thickness of 9 px and tipLength = 0.5 image = cv2.arrowedLine(image, start_point, end_point, color, thickness, tipLength = 0.5) # Displaying the image cv2.imshow(window_name, image) Output: Comment More infoAdvertise with us R Rajnis09 Follow Improve Article Tags : Python Image-Processing OpenCV Python-OpenCV Practice Tags : python Explore Python FundamentalsPython Introduction 3 min read Input and Output in Python 4 min read Python Variables 6 min read Python Operators 5 min read Python Keywords 2 min read Python Data Types 8 min read Conditional Statements in Python 3 min read Loops in Python - For, While and Nested Loops 7 min read Python Functions 8 min read Recursion in Python 6 min read Python Lambda Functions 6 min read Python Data StructuresPython String 6 min read Python Lists 6 min read Python Tuples 6 min read Dictionaries in Python 7 min read Python Sets 10 min read Python Arrays 9 min read List Comprehension in Python 4 min read Advanced PythonPython OOP Concepts 11 min read Python Exception Handling 6 min read File Handling in Python 4 min read Python Database Tutorial 4 min read Python MongoDB Tutorial 2 min read Python MySQL 9 min read Python Packages 12 min read Python Modules 7 min read Python DSA Libraries 15 min read List of Python GUI Library and Packages 11 min read Data Science with PythonNumPy Tutorial - Python Library 3 min read Pandas Tutorial 6 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 15+ min read StatsModel Library- Tutorial 4 min read Learning Model Building in Scikit-learn 8 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 7 min read Web Development with PythonFlask Tutorial 8 min read Django Tutorial | Learn Django Framework 10 min read Django ORM - Inserting, Updating & Deleting Data 4 min read Templating With Jinja2 in Flask 6 min read Django Templates 7 min read Python | Build a REST API using Flask 3 min read How to Create a basic API using Django Rest Framework ? 4 min read Python PracticePython Quiz 3 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like