Recall & Review
beginner
What is erosion in morphological operations?
Erosion shrinks bright regions in an image by removing pixels on object boundaries. It helps remove small noise and detach connected objects.
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beginner
What does dilation do in morphological image processing?
Dilation expands bright regions by adding pixels to object boundaries. It helps fill small holes and connect nearby objects.
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beginner
Which scipy function is used for erosion?
The function scipy.ndimage.binary_erosion is used to perform erosion on binary images.
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beginner
Which scipy function is used for dilation?
The function scipy.ndimage.binary_dilation is used to perform dilation on binary images.
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beginner
How do erosion and dilation affect the size of objects in a binary image?
Erosion makes objects smaller by removing edge pixels, while dilation makes objects bigger by adding pixels to edges.
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What is the main effect of erosion on a binary image?
✗ Incorrect
Erosion shrinks bright regions by removing pixels on object boundaries.
Which scipy function performs dilation?
✗ Incorrect
scipy.ndimage.binary_dilation expands bright regions by adding pixels.
What is a common use of dilation in image processing?
✗ Incorrect
Dilation helps fill small holes and connect nearby objects.
What happens to object size after erosion?
✗ Incorrect
Erosion removes edge pixels, making objects smaller.
Which operation would you use to separate two connected objects?
✗ Incorrect
Erosion can separate connected objects by shrinking them.
Explain in your own words what erosion and dilation do in image processing.
Think about how these operations change the size of shapes in a black and white image.
You got /3 concepts.
Describe a real-life example where you might use erosion and dilation on an image.
Imagine cleaning a photo or preparing it for counting objects.
You got /3 concepts.