Practice - Image as a Matrix
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Practice Questions
Test your understanding with targeted questions
What does a pixel represent in an image?
💡 Hint: Think about the smallest piece of an image.
How can a grayscale image be represented?
💡 Hint: Remember the image has only one value per pixel.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does a grayscale image use for representation?
💡 Hint: Remember the structure of grayscale images.
True or False: A color image is represented as a 2D array.
💡 Hint: Think about how colors are combined.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Given a grayscale image matrix of size 4x4, write code that inverts the pixel values.
💡 Hint: Consider what an inverted image would look like.
You are given a 3D color image matrix. Design a function to separate out the Red channel and return it as a 2D matrix.
💡 Hint: Each pixel has three values—how do you access just one?
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