I would imagine that ArcGIS wrote a projection metadata "sidecart"
file (either in XML format or as a world file; same name as image file
but different extension).
I would try to use GDAL (http://gdal.org) command line utility
gdalinfo (http://gdal.org/gdalinfo.html) and see if it can understand
the rectification information. If it can't then your task becomes more
difficult and your going to have to re-do the rectification either
manually or with some kind of batch script. If you want to use Python
for this and not be dependant on ArcPy, then use the Python api for
libgdal and create a batch script that will read control points from a
file, apply them to the image and output a rectified image. gdal_warp
does this as a command line tool for individual images. You could
create a script that uses the command line tool rather than
"re-inventing the wheel".
If gdalinfo can understand the rectification info, then you can use
gdal_translate to write it that info in a more standards compliant way
that ERDAS & MapInfo should understand. If the command line utility
works then you can either write a simple batch or shell script that
executes the utility for a number of files, or you can use the Python
api for libgdal and create a batch processing script.
Hope that is at least somewhat helpful
Matt Priour
On Tue, Jul 12, 2011 at 11:41 PM, George Corea <core
...@gmail.com> wrote:
> I have georeferenced a few hundred survey plans using the
> Georeferencing toolbar in ArcGIS but did not Rectify the images (i.e
> create a new rectified image) as I didn't want to create new files and
> take up more space. Now when I want to open them up in ERDAS or
> MapInfo they don't accept the georeferencing process and require a new
> file to be created using Rectify-->Save As
> I found a tool to do this "Create Ortho Corrected Raster Dataset" but
> the python script for it gives errors when I try.
> [code]
> import arcpy import glob import os path = os.getcwd() filename = path
> +"\Stage2_19" #for pathname, directories, filenames in os.walk(path):
> # for filename in filenames: # if
> filename.lower().endswith(".TIF"): arcpy.GetMessages()
> arcpy.CreateOrthoCorrectedRasterDataset_management(filename+".TIF",
> \ filename+".jpg",
> \
> "CONSTANT_ELEVATION", "0") arcpy.GetMessages() print "Created: " +
> filename + ".jpg"
> [/code]
> [output]
> Traceback (most recent call last): File "Q:\Software\GIS\ESRI
> \ArcGIS10\CustomScripts\temp\Georef-Rectified.py", line 16, in
> "CONSTANT_ELEVATION", "0") File "C:\Program Files\ArcGIS
> \Desktop10.0\arcpy\arcpy\management.py", line 7815, in
> CreateOrthoCorrectedRasterDataset raise e ExecuteError: ERROR 000425:
> Failed to create ortho-corrected raster dataset Failed to execute
> (CreateOrthoCorrectedRasterDataset).
