Sentinel Hub Image Viewer

A Python application for viewing and processing Sentinel-2 satellite imagery using the Sentinel Hub API.

Setup Instructions

1. Install Dependencies

pip install -r requirements.txt

2. Sentinel Hub Configuration

1. Create a Sentinel Hub account at https://www.sentinel-hub.com/
2. Go to your account settings and create OAuth credentials
3. Create a .env file in the project root with the following content:

SENTINEL_HUB_CLIENT_ID=your_client_id_here
SENTINEL_HUB_CLIENT_SECRET=your_client_secret_here

3. Environment Variables

Create a .env file in the project root directory with your Sentinel Hub credentials:

SENTINEL_HUB_CLIENT_ID=your_client_id_here
SENTINEL_HUB_CLIENT_SECRET=your_client_secret_here

Features

• High-resolution Sentinel-2 imagery display
• Enhanced visualization using 10m resolution bands
• Vegetation enhancement using NDVI
• Interactive location selection
• Customizable image quality settings

Usage

1. Run the application:

python image.py

2. The application will prompt you to:

   • Enter a location name
   • Select image quality settings
   • Set update interval

3. Controls:

   • Mouse wheel: Zoom in/out
   • Left click + drag: Pan the image
   • ESC: Exit the application

Image Processing

The application uses Sentinel-2's high-resolution bands:

• B02 (Blue)
• B03 (Green)
• B04 (Red)
• B08 (NIR)

Image enhancement includes:

• Contrast stretching
• Vegetation enhancement using NDVI
• Brightness adjustment
• Color balancing

Troubleshooting

1. If you see no image:

   • Check your Sentinel Hub credentials
   • Verify internet connection
   • Try a different location
   • Adjust the date range if necessary

2. If the image is too dark/bright:

   • The evalscript in image.py can be adjusted
   • Modify the gain value (currently 2.5)
   • Adjust contrast stretching parameters

Dependencies

See requirements.txt for a complete list of dependencies.

License

This project is licensed under the MIT License - see the LICENSE file for details.