I have created a index grid feature class that represents the tiles of images that I have for a project study area. What I'm looking to do, is mosaic the raster tiles into a suitable number of tile groups that will reduce the Raster extent of the overall Raster study area extent to reduce the amount of NoData and overall image size. At first thought the problem to solve is the number of tiles to generate that will optimally reduce the overall raster extent thereby reducing the NoData and overall image size.
Index Grid Polygon Feature Class
Index Grid Groups
I've attached the Index Grid Shapefile. Any advice in possible methods that I could apply to determine the most optimal groupings to reduce the NoData and overall Image Size. How the find the balance between the number of tile groups and overall image size.