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Find and fix images ith Spatial Reference Undefined.

Question asked by huffmanp on Jan 14, 2016
Latest reply on Feb 26, 2016 by huffmanp

I have a directory with 370 tifs.  I just found out that a few, an unknown number, have the projection undefined, but they draw aligned with the know projection tifs, so no mystery there.  I thought I could loop through a list of tifs in the folder and set the definition on the files missing, similar to  but wondered if I should add an "if" to check if the image is one of the ones with projection undefined. But what would be that test?  Do you think the test would speed up execution or not?