I am trying to do an accuracy assessment in Erdas using "user defined ground control points" (I collected the GPS points myselfin the field using a handheld GPS).
However, when I load the thematic image I want to validate, I get an error message saying the file is not an EFHA file (ERDAS Hierarchal File Architecture) which results in the file not being loaded into the CellArray.
Any idea on how I can I solve this problem?
Best Answer
Here is the fix:
1) Import your image and convert it to an .img
If this does not fix the problem then try the following:
2) Click on the "manage data" tab, and click on edit image metadata 3) Change the raster type to "thematic" if it isn't already 4) select "compute pyramids and statistics"
That should sort out the issue.