Displaying images with imshow in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the matplotlib module used for plotting images.

Matplotlib

import matplotlib.[1] as plt

Drag options to blanks, or click blank then click option'

Aimshow

Bimage

Cplot

Dpyplot

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'image' instead of 'pyplot' for import.

Trying to import 'imshow' directly.

Using 'plot' which is not the correct module.

The pyplot module in matplotlib is used for plotting images and graphs. We import it as plt by convention.

2fill in blank

medium

Complete the code to display an image stored in the variable 'img' using imshow.

Matplotlib

plt.[1](img)
plt.show()

Drag options to blanks, or click blank then click option'

Aimshow

Bplot

Cimage

Ddisplay

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'plot' which is for line plots.

Using 'display' which is not a matplotlib function.

Using 'image' which is not a function.

The imshow function is used to display images in matplotlib.

3fill in blank

hard

Fix the error in the code to correctly display a grayscale image stored in 'gray_img'.

Matplotlib

plt.imshow(gray_img, cmap=[1])
plt.show()

Drag options to blanks, or click blank then click option'

A'color'

B'gray'

C'rgb'

D'hsv'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'rgb' which is for color images.

Using 'color' which is not a valid colormap.

Using 'hsv' which changes colors.

To display a grayscale image correctly, the colormap 'gray' must be used.

4fill in blank

hard

Fill both blanks to create a figure of size 8x6 inches and display the image 'img'.

Matplotlib

plt.figure(figsize=([1], [2]))
plt.imshow(img)
plt.show()

Drag options to blanks, or click blank then click option'

A8

B6

C4

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping width and height values.

Using very small or very large numbers.

Forgetting to use a tuple.

The figsize parameter takes width and height in inches. Here, 8 and 6 create a wider figure.

5fill in blank

hard

Fill all three blanks to display the image 'img' without axis ticks and with a title 'My Image'.

Matplotlib

plt.imshow([1])
plt.axis([2])
plt.title([3])
plt.show()

Drag options to blanks, or click blank then click option'

Aimg

B'off'

C'My Image'

D'on'

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'on' instead of 'off' for axis.

Passing the title without quotes.

Using wrong variable name for the image.

We display the image variable img, turn off axis ticks with 'off', and set the title to 'My Image'.