Week 18 Quiz

Computer Vision and Image Processing

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Quiz Questions

1. What are the three color values that make up each pixel in a color image?

A) Red, Yellow, Blue B) Red, Green, Blue C) Red, Green, Yellow D) Blue, Yellow, Purple

2. What RGB values would represent pure white?

A) (0, 0, 0) B) (255, 255, 255) C) (128, 128, 128) D) (255, 0, 0)

3. How do you convert a color pixel to grayscale?

A) Use only the red value B) Use only the blue value C) Average the red, green, and blue values D) Multiply all three values together

4. What does increasing the brightness of an image do to the pixel values?

A) Adds the same amount to all pixel values B) Multiplies all pixel values by 2 C) Subtracts the same amount from all pixel values D) Changes only the red values

5. Why do we use color ranges instead of exact color values when detecting objects?

A) It makes the program run faster B) It uses less memory C) It accounts for lighting variations and camera differences D) It makes the code shorter

6. What is the purpose of edge detection in image processing?

A) To make images brighter B) To find boundaries between different colored areas C) To remove noise from images D) To convert images to grayscale

7. In image coordinates, where is the point (0,0) typically located?

A) Bottom-left corner B) Top-left corner C) Center of the image D) Top-right corner

8. If a pixel has RGB values of (200, 50, 50), what color would it appear to be?

A) Blue B) Green C) Red D) Yellow

9. Explain how a robot could use computer vision to follow a colored line on the ground. (Short Answer)

10. Give an example of how computer vision is used in everyday life and explain how it works. (Short Answer)

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