Sign Language Learning Platform (Revamped)

A comprehensive web application for learning sign language using Python Flask, OpenCV, and AI.

Recently Updated: This project has been refactored to support Offline Mode (SQLite) and Online Mode (Firebase) automatically.

🚀 How to Run

Windows (Easiest)

Double-click run_app.bat.

Command Line

python run.py

Open your browser at http://localhost:5000

✨ New Features

• Hybrid Database: Automatically uses SQLite if Firebase credentials are missing. No setup required!
• Robust Camera: Improved camera handling that won't crash your app.
• Modular Code: Cleaned up into camera_handler.py, db_handler.py, and app.py.

🛠️ Setup Guide

1. Install Dependencies

pip install -r requirements.txt

2. Configuration (Optional)

• Offline Mode: Works out of the box!
• Online Mode:
  • Add firebase-credentials.json to the root folder.
  • Update .env with your GEMINI_API_KEY for AI features.

📂 Project Structure

• app.py: Main Web Application
• camera_handler.py: Computer Vision Logic (OpenCV/MediaPipe)
• db_handler.py: Database Logic (SQLite/Firebase)
• run.py: Startup Script
• templates/: HTML Frontend

🎮 How to Play

1. Register an account (Local or Cloud).
2. Go to Start Exercise.
3. Allow Camera access.
4. Follow the instructions on screen (e.g., "Show Letter A").
5. The AI will detect your hand and give feedback!