GeoExpress - FAQ - Frequently Asked Questions

F070106 - Should I reproject my imagery first and then mosaic it together? Or should I mosaic and reproject in one step?

The best workflow is to perform the mosaicking and reprojection at the same time, as this will prevent artifacts from occurring between tiles in most situations.

However, if the input images are in different coordinate systems, GeoExpress automatically reprojects each input tile to the output coordinate system before mosaicking, which may result in artifacts between tiles. In this case you should reproject the images before mosaicking them.

This article was last updated or verified on 9 October 2012.