Table of contents

Slide 1

Packages

Sharpen

Blur

Edges

How many of us have looked under the bonnet?

Software Engineers are lazy!

Convolution

What is blur?

How do we calculate an average?

In an image?

Why weights?

Convolution In Practice

Slide 14

Convolution

What can we do with convolution?

What can we use blurring for?

What’s an Edge?

Slide 19

Problem?

Solution?

Slide 22

What happens if we add?

Slide 24

Slide 25

Slide 26

Slide 27

What’s a problem with convolution?

Frequency Based Filtering

What’s a Fourier Transform?

Filtering

Hubble

Slide 33

Slide 34

Slide 35

Slide 36

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