michaeledsome

Hello I have a merged geotiff image from a drone survey i conducted with about 2000 images to create a georeferenced image. The drones camera (DJI Phantom 3 Pro) has an onboard GPS (non RTK) but i have taken some GCP after processing and wanted to update the geotiff with the GCP coords. The XY is easy to reproject but how can i or what software can i use to shift the elevation (Z values) for the geotiff? Michael