1. Screenshot & calibration points
Upload or paste a screenshot to begin.
Tip: press Ctrl/Cmd+V anywhere to paste a screenshot.
2. Reference points
Click on the screenshot to drop a reference point. Type, paste, or pick its coordinates. 1–2 well-spread points suffice for clean maps; use 4+ for scans or photos.
No reference points yet. Click anywhere on the image.
3. Detect markers
Pick one well-formed marker per color/shape variant; detection tightens to match.
4. Results & export
Output coords:
Add at least 2 reference points with coordinates to project detected markers to real-world locations.
| # | Name | Color | E | N | |
|---|---|---|---|---|---|
| No markers yet. | |||||
Detection + OCR run locally on your device. No image is uploaded to a server.