Python OpenCV | cv2.ellipse() 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.ellipse() method is used to draw a ellipse on any image. Syntax: cv2.ellipse(image, centerCoordinates, axesLength, angle, startAngle, endAngle, color [, thickness[, lineType[, shift]]]) Parameters: image: It is the image on which ellipse is to be drawn. centerCoordinates: It is the center coordinates of ellipse. The coordinates are represented as tuples of two values i.e. (X coordinate value, Y coordinate value). axesLength: It contains tuple of two variables containing major and minor axis of ellipse (major axis length, minor axis length). angle: Ellipse rotation angle in degrees. startAngle: Starting angle of the elliptic arc in degrees. endAngle: Ending angle of the elliptic arc in degrees. color: It is the color of border line of shape to be drawn. For BGR, we pass a tuple. eg: (255, 0, 0) for blue color. thickness: It is the thickness of the shape border line in px. Thickness of -1 px will fill the shape by the specified color. lineType: This is an optional parameter.It gives the type of the ellipse boundary. shift: This is an optional parameter. It denotes the number of fractional bits in the coordinates of the center and values of axes. Return Value: It returns an image. Image used for all the below examples: Example #1: Python3 1== # Python program to explain cv2.ellipse() method # importing cv2 import cv2 # path path = r'C:\Users\Rajnish\Desktop\geeksforgeeks\geeks.png' # Reading an image in default mode image = cv2.imread(path) # Window name in which image is displayed window_name = 'Image' center_coordinates = (120, 100) axesLength = (100, 50) angle = 0 startAngle = 0 endAngle = 360 # Red color in BGR color = (0, 0, 255) # Line thickness of 5 px thickness = 5 # Using cv2.ellipse() method # Draw a ellipse with red line borders of thickness of 5 px image = cv2.ellipse(image, center_coordinates, axesLength, angle, startAngle, endAngle, color, thickness) # Displaying the image cv2.imshow(window_name, image) Output: Example #2: Using thickness of -1 px and rotation of 30 degrees. Python3 1== # Python program to explain cv2.ellipse() method # importing cv2 import cv2 # path path = r'C:\Users\Rajnish\Desktop\geeksforgeeks\geeks.png' # Reading an image in default mode image = cv2.imread(path) # Window name in which image is displayed window_name = 'Image' center_coordinates = (120, 100) axesLength = (100, 50) angle = 30 startAngle = 0 endAngle = 360 # Blue color in BGR color = (255, 0, 0) # Line thickness of -1 px thickness = -1 # Using cv2.ellipse() method # Draw a ellipse with blue line borders of thickness of -1 px image = cv2.ellipse(image, center_coordinates, axesLength, angle, startAngle, endAngle, color, thickness) # 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 5 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 5 min read Python Data StructuresPython String 5 min read Python Lists 5 min read Python Tuples 4 min read Dictionaries in Python 3 min read Python Sets 6 min read Python Arrays 7 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