Practice Working With Images (21.3) - OpenCV - CBSE 10 AI (Artificial Intelleigence)

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What function do you use to read an image with OpenCV?
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Think about how you read files in Python.
Question 2.
What does cv2.waitKey(0) do?
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It allows you to interact with the image display.
3Question 3.
What OpenCV function reads an image from a file?
- cv2.display()
- cv2.readImage()
- cv2.imread()
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Remember the function that starts with 'im'.
4Question 4.
True or False: Color images are stored as 2D arrays in OpenCV.
- True
- False
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Think about the number of color channels in a color image.
Question 5.
Implement a program that takes an image path as user input, reads the image, displays it, and then closes after pressing a key.
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Remember to prompt the user for the image path correctly.
Question 6.
Write a function that reads and displays an image, then converts it to grayscale and shows that image.
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You will need to use the color conversion function to achieve this.

5 more questions in this section. Enroll free to practise them all.