21.4.1 - Converting to Grayscale
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Practice Questions
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What does the cvtColor function do?
💡 Hint: Think about how we represent colors in images.
What is the significance of converting an image to grayscale?
💡 Hint: Consider how many colors are in grayscale.
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Interactive Quizzes
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What is the main purpose of the cvtColor function in OpenCV?
💡 Hint: Think about the functions used before displaying or processing images.
True or False: Grayscale images use three channels to represent color.
💡 Hint: How many values does each pixel need for grayscale?
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Challenge Problems
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Write a Python program using OpenCV that loads an image of your choice, converts it to grayscale, and saves the grayscale image to disk.
💡 Hint: Don't forget to use the correct functions for reading, converting, and writing images.
Explain the concept of grayscale conversion in the context of machine learning, particularly in facial recognition.
💡 Hint: Consider how algorithms handle different types of data for greater accuracy.
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