DEV Community

Sripadh Sujith
Sripadh Sujith

Posted on

1 1 1 1 1

πŸš€ Real-Time Smile Detector Using Python & OpenCV πŸ˜ƒ

Introduction

Hey everyone! I just built a real-time smile detector using Python and OpenCV πŸŽ‰. This project detects faces and identifies smiles in a live video feed from a webcam. It's simple, lightweight, and a great way to experiment with computer vision!

How It Works

The smile detector uses Haar cascade classifiers, a popular feature-based object detection method in OpenCV. The script:
βœ… Captures video from a webcam πŸ“·
βœ… Detects faces using the Haar cascade face detector πŸ‘€
βœ… Detects smiles within the detected face region πŸ˜„
βœ… Draws rectangles around smiles in real time

Technologies Used

πŸ”Ή Python 3.x 🐍
πŸ”Ή OpenCV (cv2) πŸ‘€
πŸ”Ή Haar Cascade Classifier πŸ“Š

Installation & Usage

Want to try it out? Follow these simple steps:

1️⃣ Clone the repo:

git clone https://github.com/Sripadh-Sujith/Realtime_smile_detector.git
cd Realtime_smile_detector
Enter fullscreen mode Exit fullscreen mode

Applications

πŸš€ Fun AI applications
πŸ˜ƒ Emotion analysis
πŸ€– Human-computer interaction
🎭 Sentiment detection in live streams

What’s Next?

I plan to improve this project by:

Implementing deep learning-based smile detection using CNNs 🧠

Adding emotion classification for better accuracy 🎭

Optimizing performance for real-time applications

Check Out the Code πŸ’»

Github:-https://github.com/Sripadh-Sujith/Realtime_smile_detector

If you liked this project, give it a ⭐ on GitHub and let me know your thoughts in the comments! 😊

Image of Stellar post

Check out Episode 1: How a Hackathon Project Became a Web3 Startup πŸš€

Ever wondered what it takes to build a web3 startup from scratch? In the Stellar Dev Diaries series, we follow the journey of a team of developers building on the Stellar Network as they go from hackathon win to getting funded and launching on mainnet.

Read more

Top comments (0)

Image of Stellar post

πŸš€ Stellar Dev Diaries Series: Episode 1 is LIVE!

Ever wondered what it takes to build a web3 startup from scratch? In the Stellar Dev Diaries series, we follow the journey of a team of developers building on the Stellar Network as they go from hackathon win to getting funded and launching on mainnet.

Read more