A Python script which lets users control their cursor using hand gestures. Take a look!

Clone and cd into the the repository.

git clone https://github.com/a37tam/Wave.git
cd Wave

Create a virtual environment to manage all the dependencies listed in requirements.txt. Activate it and install dependencies.

python3 -m venv env
source env/bin/activate
pip3 install -r requirements.txt

Run the Python script.

python3 main.py

Deactivate virtual environment.

deactivate

Access video stream from the laptop's webcam.

For each individual frame,

1. Perform colour space conversion from BGR (the default colour space in OpenCV) to grayscale.
2. Convolve a blurring kernel over the frame to reduce background noise.
3. Determine an appropriate pixel intensity threshold value. Use this threshold to obtain a binary image.
4. Process all the contours in the binary image and select the contour with the greatest area. This is the user's hand.
5. Obtain the convex hull of the largest contour.
6. From the convex hull, extract the total number of convexity defects and their coordinates.
7. Based on these convexity defects, invoke the corresponding mouse event.

Move cursor: 2 fingers

Left click: 3 fingers

Right click: 4 fingers

To exit the application: Press "q" when the application window has focus.

More features to come!