Chapter 3 Quiz

Question 1 of 4

1. Question

What does the import cv2 statement do?

Imports our OpenCV Python bindings.
Imports the NumPy library for numerical processing.
Imports the SciPy library for numerical processing.
Displays an image to our screen.

Question 2 of 4

2. Question

Given the following NumPy array shape, how would we interpret the width, height, and number of channels in the image: (400, 600, 3):

width=600, height=400, channels=3
width=400, height=600, channels=3
width=3, width=600, channels=400
width=600, height=3, channels=400

Question 3 of 4

3. Question

Suppose our image has a width of 700 pixels, a height of 550 pixels, and 3 channels, one for each Red, Green, and Blue component. How would we express this image as a NumPy array shape?

(550, 700, 3)
(700, 550, 3)
(3, 550, 700)
(3, 700, 550)

Question 4 of 4

4. Question

Instead of our load_display_save.py script outputting a file named newimage.jpg, modify it so the output becomes my_output.png. What is the correct function call to make this change?

cv2.imwrite("my_output.png", image)
cv2.imwrite(image, "my_output.png")
cv2.imsave("my_output.png", image)
cv2.imread("my_output.png", image)

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

PPAO Supplementary Material