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Filter convolutions

Filters are an essential tool in image processing. They allow you to transform images based on intensity values surrounding a pixel, rather than globally.

2D array convolution. By Michael Plotke [CC BY-SA 3.0  (https://creativecommons.org/licenses/by-sa/3.0)], from Wikimedia Commons

For this exercise, smooth the foot radiograph. First, specify the weights to be used. (These are called "footprints" and "kernels" as well.) Then, convolve the filter with im and plot the result.

Questo esercizio fa parte del corso

Biomedical Image Analysis in Python

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Esercizio pratico interattivo

Prova a risolvere questo esercizio completando il codice di esempio.

# Set filter weights
weights = [[0.11, 0.11, ____],
           [0.11, ____, 0.11], 
           ____]
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