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---
title: Edge Detection
categories: session
---
**Date** 29 September 2021
**Briefing** [Edge Lecture]()
# Debrief
**Reading** Ma (2004) Ch 4.4;
[Canny Edge Detection in OpenCV](https://docs.opencv.org/4.x/da/d22/tutorial_py_canny.html)
# Exercises
## Python API
This is based on Ma (2004) Exercise 4.9, which is written for Matlab.
1. Find a test image.
2. Test the `Canny` edge detector in OpenCV.
See the [tutorial](https://docs.opencv.org/4.x/da/d22/tutorial_py_canny.html)
for an example. Experiment with different thresholds.
See the [docs](https://docs.opencv.org/3.4/dd/d1a/group__imgproc__feature.html#ga04723e007ed888ddf11d9ba04e2232de) for details.
3.