Hello Community,
Hoping some folks with more expertise can clarify a couple of questions I have about a Geoprocessing workflow.
I am georeferencing multiple sets of historic aerial images. I am not orthorectifying them - just trying to georeference with the end goal of mosaics.
My first question has to do with Exporting the georeferenced raster:
When I add a sufficient number of control points, apply a transformation, and save the raster using the Save button on the Georeference tab, does this create a product that is suitable as an input into a mosaic? My interpretation of the information near the bottom of this overview is that the file as described above has not applied a permanent transformation to the raster - so what is it doing? Just saving the untransformed raster with control point information?
If I do need to Export the raster in order for the product of georeferencing to be a viable input to a mosaic, is there any way to do this programmatically? I have some experience using Arcpy scripts and other applications of Python for systematic data processing, but the Export Raster pane that opens through Save as New in the Geoprocessing tab is not a Geoprocessing tool. Additionally, when experimenting briefly with this Export pane it appeared as if I would need a polgyon feature bounding the raster exactly to use as a clipping geometry input feature in order to avoid an output raster with a rectangular extent defined by the X and Y Mins and Maxes of the input, with lots of black pixels (the input rasters are not horizontal rectangles).
I have several hundred images to tile and am more than halfway done with the initial georeferencing, but would love to avoid manually reopening each raster, drawing an input bounding polygon, and exporting individually. What is the cleanest/most efficient workflow for a process like this?
Any suggestions, clarifications, or clarifying questions are gratefully accepted!
