Ground Control Points interface

idea

#1

Currently it’s a bit difficult to create a ground control points file. Ideally starting from the concepts available in https://github.com/posm/posm-gcpi, a GCP interface should be integrated in WebODM that makes it easy for people to create a GCP file.

A really, really cool feature would be the automatic detection of GCP markers across images. Many JS frameworks such as https://trackingjs.com/ could allow this to be implemented directly in the browser.