Exporting a georeferenced TIFF

[MichaelThompson2]

I've searched high and low and haven't found a solution to this issue and I'm stumped!

I was given a .cgm file and asked to georeference and output a TIFF from the georeferenced file. I used 4 control points to georeference the image after adding it to my map as a .png file. When I export the result is a TIFF image along with .aux, .tfw, and .ovr files. The TIFF thumbnail is a solid black rectangle, though, and it opens up in the program the end user is trying to use as a black rectangle. Anyone know what I am doing wrong?

Also, the end user says the other georeferenced TIFFs he has include a .tif, .aux, and a .rrd if that helps at all.

Thanks!!

[Luke_Pinner]

Did you georeference then use the Rectify... menu?
If so, did you leave the No Data value at its default of 256?
If so, your output raster was saved as a 16bit tif.  To display it properly, build statistics or change/remove stretch in the layer properties->symbology tab.  Alternatively, set NoData to 0 when exporting and your tif will be saved as 8 bit and should display properly.

The different associated files are nothing to worry about. ArcGIS uses a new raster library "under the hood".  The old library created .rrd files to hold the reduced resolution overviews (pyramids), while the new library saves them to a .ovr file.

[MichaelThompson2 · Accepted solution]

Did you georeference then use the Rectify... menu?
If so, did you leave the No Data value at its default of 256?
If so, your output raster was saved as a 16bit tif.  To display it properly, build statistics or change/remove stretch in the layer properties->symbology tab.  Alternatively, set NoData to 0 when exporting and your tif will be saved as 8 bit and should display properly.

The different associated files are nothing to worry about. ArcGIS uses a new raster library "under the hood".  The old library created .rrd files to hold the reduced resolution overviews (pyramids), while the new library saves them to a .ovr file.

Thanks for the suggestions, Luke! I tried them all but I was still having issues. One of the ArcGIS savvy guys was able to get me straightened out. Apparently all I need to do was bring the image into ArcMAP, georeference it, and then just use the "Save Georeferencing" option in the drop down menu. Simple as that.

Once I got the two images figured out and saved properly my end user sent me a whole bunch more! Ain't that how it always works?

Thanks again!