I have hundred raster data without spatial reference on it. (Spatial Reference is undefined and xY coordinate system is unknown)
The original raster data was Subdataset so I used 'Data Management tools\Raster\Raster ProcessingExtract Subdataset' to extract the single raster.
Now, I think I have to define the projection so I can make a mosaic data from raster file. I have a point shape file which indicate the middle of the raster data. I also have to rotate the raster data as well.
What is the best way to do this process? I tried geo-reference however I have more than 100 files to process so I will like to use ArcMap tool or GDal or Python.