SciPy - Image Processing (scipy.ndimage)
Which of the following is the correct way to apply the Sobel filter on a 2D image array named
img using SciPy?Which of the following is the correct way to apply the Sobel filter on a 2D image array named img using SciPy?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall Sobel filter usage in SciPy
The Sobel filter is applied using scipy.ndimage.sobel with the image and axis (0 for vertical, 1 for horizontal).Step 2: Check axis validity
For a 2D image, valid axes are 0 or 1. Axis=2 is invalid and will cause an error.Final Answer:
scipy.ndimage.sobel(img, axis=0) -> Option CQuick Check:
Sobel syntax = scipy.ndimage.sobel(img, axis) [OK]
Quick Trick: Use axis 0 or 1 for 2D images with sobel [OK]
Common Mistakes:
- Using axis=2 on 2D images causes errors
- Confusing laplace and sobel functions
- Using gaussian_filter instead of sobel for edges
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