I am trying to georeference rasters from Vietnam in QGIS which have printed coordinates in VN2000.
I am using the following custom CRS settings for the province.
+proj=tmerc +lat_0=0 +lon_0=108.25 +k=0.9999 +x_0=0 +y_0=500000 +ellps=WGS84 +towgs84=-191.90441429,-39.30318279,-111.45032835,0.00928836,-0.01975479,0.00427372,0.252906278 +units=m +no_defs
The rasters appear in the incorrect location when georeferenced.
This has been solved. The definition of the false easting above is incorrect. The definition should read +x_0=500000 +y_0=0