GCP Tagger

ODM ground control points — photos never leave this device
🎯 Build an ODM GCP file — click for instructions

1) Load your drone photos (they stay on this device — nothing is uploaded) · 2) Import surveyed points from an Emlid Flow CSV/DXF (or add manually) · 3) Select a point, then click its target in every photo where it's visible (≥ 5 photos recommended, nadir + oblique) — use the 🗺 Map to see which photos were taken near each point · 4) Export gcp_list.txt and feed it to ODM / WebODM. Points, tags and the chosen CRS are kept in this browser between sessions; photos are re-loaded each time.

📍 Surveyed points

No points yet — import an Emlid export or add one below.

➕ Add point manually

🖼 Photos

Load photos, select a point, then click its target · Enter = accept prediction · wheel = zoom · drag = pan
A new version is available.