I´m trying to created a AOI in ERDAS with a shapefile, but this shapefile had a projected system different to system that my image has, because of that I changed the projected system of the shp in QGIS. Now both (image and shapefile) have the same system, but they are not overlapping each other, I know they are from the same zone but it seems like I´m doing something wrong.
Should I change something else? Or did I something wrong in the process? I followed this answer to re project the shp How can I change the projection of shapefile in QGIS?