Recall & Review
beginner
What function in scipy.ndimage is used to rotate an image?
The function
scipy.ndimage.rotate is used to rotate an image by a specified angle.Click to reveal answer
beginner
How do you zoom an image using scipy?
You can zoom an image using
scipy.ndimage.zoom, which scales the image by a given zoom factor.Click to reveal answer
intermediate
What does the parameter
reshape control in scipy.ndimage.rotate?The
reshape parameter controls whether the output image size changes to fit the entire rotated image (True) or keeps the original size (False).Click to reveal answer
intermediate
Why might you want to use
order parameter in scipy.ndimage.zoom?The
order parameter controls the spline interpolation order used for zooming. Higher order means smoother images but more computation.Click to reveal answer
intermediate
What is the effect of rotating an image by 90 degrees with
reshape=False?Rotating by 90 degrees with
reshape=False keeps the original image shape, so parts of the rotated image may be cropped.Click to reveal answer
Which scipy function rotates an image by a given angle?
✗ Incorrect
scipy.ndimage.rotate is used for image rotation.What does
scipy.ndimage.zoom do?✗ Incorrect
scipy.ndimage.zoom scales the image by a zoom factor.If you want to keep the original image size after rotation, what should
reshape be set to?✗ Incorrect
Setting
reshape=False keeps the original image size.Which parameter controls the smoothness of zoomed images in
scipy.ndimage.zoom?✗ Incorrect
The
order parameter controls interpolation smoothness.What happens if you rotate an image by 90 degrees with
reshape=True?✗ Incorrect
reshape=True adjusts the output size to fit the rotated image.Explain how to rotate and zoom an image using scipy.ndimage functions.
Think about which functions handle rotation and zoom separately.
You got /6 concepts.
Describe the effect of the reshape parameter in image rotation and why it matters.
Consider what happens to image edges after rotation.
You got /4 concepts.