⚙️ Usage
A simple interface guides you through configuration:
- load calibration file to remove fisheye effect (optional)
- Select images to process
- Threshold sample images to tell the software what colors to look for
- Specify the number of stripes
- Zero out twist calculations using fixed references like spreaders
🚀 Processing
Click "Start Sail Shape Analysis" and let the software work. A 2-hour sail at 1-second intervals produces about 7,000 photos, which takes around 30 minutes to process on a basic laptop.
📊 Calculations
For every stripe detected, Sailemetry calculates:
- Twist - Measured in degrees
- Max Depth - Percentage relative to sail length
- Max Depth Location - Percentage from luff to leech
- Entry Angle - Twist for the first 5% of the stripe
- Exit Angle - Twist for the last 5% of the stripe
📁 Outputs
Sailemetry provides two outputs:
- CSV file - Complete data for every successfully analyzed image
- Annotated images - Copies of successful images with stripe data overlaid on the top left and white traces showing the stripe contours used for calculations
🔗 Integrations
The output CSV file works directly with:
- Sail Njord - Integrate with their analysis tools
- Telemetry Overlay - Combine with video and GPS data
- Rosenberg Analytics - Data reports configured for Sailemetry