Image rotation and zoom in SciPy - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to rotate the image by 45 degrees using scipy.

SciPy

from scipy.ndimage import rotate
rotated_image = rotate(image, [1])

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

A45

B90

C30

D60

Attempts:

3 left

💡 Hint

Common Mistakes

Using radians instead of degrees.

Forgetting to import rotate from scipy.ndimage.

The rotate function takes the angle in degrees. To rotate by 45 degrees, use 45.

2fill in blank

medium

Complete the code to zoom the image by a factor of 2 using scipy.

SciPy

from scipy.ndimage import zoom
zoomed_image = zoom(image, [1])

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

A0.5

B1

C2

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using a zoom factor less than 1 to enlarge the image.

Confusing zoom factor with pixel dimensions.

The zoom function scales the image. A factor of 2 doubles the size.

3fill in blank

hard

Fix the error in the code to rotate the image without changing its shape.

SciPy

rotated_image = rotate(image, 30, [1]=False)

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

Amode

Border

Cprefilter

Dreshape

Attempts:

3 left

💡 Hint

Common Mistakes

Using mode or order instead of reshape.

Not setting reshape parameter at all.

The reshape parameter controls if the output shape changes. Setting reshape=False keeps the original shape.

4fill in blank

hard

Fill both blanks to zoom the image by 1.5 and rotate it by 90 degrees.

SciPy

zoomed_image = zoom(image, [1])
rotated_image = rotate(zoomed_image, [2])

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

A1.5

B90

C45

D2

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up zoom factor and rotation angle.

Using 45 degrees instead of 90 for rotation.

Use 1.5 to zoom by 1.5 times and 90 to rotate by 90 degrees.

5fill in blank

hard

Fill all three blanks to rotate the image by 180 degrees, zoom by 0.75, and keep the original shape after rotation.

SciPy

rotated_image = rotate(image, [1], [2]=False)
final_image = zoom(rotated_image, [3])

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

Areshape

B180

C0.75

Dorder

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting reshape=False causes shape change.

Using zoom factor greater than 1 when shrinking is needed.

Rotate by 180 degrees, set reshape=False to keep shape, and zoom by 0.75 to reduce size.