OpenCV with Python in 4 Hours

Notes and code used in my Python and OpenCV course on freeCodeCamp.org.

Important Updates:

caer.train_val_split() is a deprecated feature in caer. Use sklearn.model_selection.train_test_split() instead. See #9 for more details.

Course Outline (with timestamps)

1. Installation

Besides installing OpenCV, we cover the installation of the following packages:

Caer is a lightweight, high-performance Vision library for high-performance AI research. It simplifies your approach towards Computer Vision by abstracting away unnecessary boilerplate code giving you the flexibility to quickly prototype deep learning models and research ideas.

$ pip install caer

canaro is a Python package solely for Deep Learning models built in Keras

$ pip install canaro

2. Basic Concepts:

Reading Images and Video (0:04:12)
Resizing and Rescaling Images and Video Frames (0:12:57)
Drawing Shapes and Placing text on images (0:20:21)
5 Essential Methods in OpenCV (0:31:55)
Image Transformations (0:44:13)
Contour Detection (0:57:06)

3. Advanced Concepts:

Switching between Colour Spaces (RGB, BGR, Grayscale, HSV and Lab) (1:12:53)
Splitting and Merging Colour Channels (1:23:10)
Blurring (1:31:03)
BITWISE operations (1:44:27)
Masking (1:53:06)
Histogram Computation (2:01:43)
Thresholding/Binarizing Images (2:15:22)
Advanced Edge Detection (2:26:27)

4. Face Detection and Recognition

Face Detection using Haar Cascades (2:35:25)
Face Recognition using OpenCV's LBPHFaceRecognizer algorithm (2:49:05)

5. Capstone: Deep Computer Vision

Building a Deep Computer Vision model to classify between the characters in the popular TV series The Simpsons (3:11:57)

Credits

The images in the Photos and Videos folders were downloaded from Unsplash and Pixabay, unless otherwise mentioned.

The images in the Faces folder were procurred from a repo on Kaggle.

License

DevOps-SmartApps/opencv-course

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