Practice - Drawing on Images
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What function do you use to draw rectangles in OpenCV?
💡 Hint: Think about the name of the function for rectangles.
How do you specify the color for drawn shapes?
💡 Hint: Remember the order of colors in OpenCV.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What parameters do you need for cv2.rectangle()?
💡 Hint: Remember the acronym for rectangle parameters.
True or False: cv2.circle() requires a radius parameter.
💡 Hint: Think about what makes a circle complete.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create a function that takes an image and a list of circles with coordinates and radius, then draws all these circles on the image.
💡 Hint: Remember to use the correct parameters for color and thickness.
Design a simple OpenCV application that loads an image and allows users to click on the image to draw circles where they click.
💡 Hint: Map the click coordinates to the circle parameters.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.