My challenge is to replace most of the remote sensing commercial tools with R code (I'm teaching assistant at the University and I would like to move to open source R code to show the added values to the students). I'm currently stuck as I cannot find a way to perform geometric correction of remote sensing data. The exercise should be:
- Select Ground Control Points on both the georeferenced image and the image to correct
- Use polynomial mapping for image correction (students should try to test different polynomial order and calculate the RMSE for each step)
- Warp the image in a defined projection using the interpolation method (either nearest neighbour, bi-linear interpolation, cubic convolution)
The 2 last steps could be processed using GDAL but it is not really interactive with R.
Does someone has any idea or experience with such processing?