
Face Mask Detection using Python
Title: Face Mask Detection Using Python
Summary:
Face Mask Detection using Python is a computer vision project that automatically detects whether a person is wearing a face mask or not by analyzing images or live video feed. It uses machine learning and deep learning techniques along with OpenCV and TensorFlow or Keras libraries.
Explanation:
This project was especially useful during the COVID-19 pandemic to help enforce mask-wearing in public spaces. The system uses Python to process images or real-time video and identify faces. Once a face is detected, it classifies the face into two categories: with mask or without mask.
Here is how the project works step by step:
Dataset Preparation:
A dataset is created or downloaded that contains images of people with and without face masks. These images are labeled accordingly.
Model Training:
A deep learning model (usually a Convolutional Neural Network or CNN) is trained on the dataset. The model learns to extract features from the faces and classify them.
Face Detection:
Before checking for a mask, the face must be located in the image. OpenCV or a pre-trained face detector like Haar Cascade or SSD (Single Shot Detector) is used to detect faces in the frame.
Mask Detection:
The detected face is passed through the trained model, which predicts whether the face is wearing a mask or not.
Real-Time Implementation:
The system can be connected to a webcam. It continuously processes video frames, detects faces, checks for masks, and displays the result with a label and possibly a bounding box.
Output:
The program displays each face with a label such as “Mask” or “No Mask” in real-time. It may also use color-coded boxes – green for “Mask” and red for “No Mask”.
Technologies and Libraries Used:
Python
OpenCV
TensorFlow or Keras
NumPy
Matplotlib (for visualization, if needed)
Applications:
Security monitoring in public places
Entry gates of offices, malls, or airports
Health and safety systems