[gdal-dev] Pyramid level 1 in OVR pyramid file

Hi everyone, I understand that the first pyramid level (subimage 0) in an OVR pyramid file is missing because this saves a lot of space compared to how RRD pyramid files are built. For those of you who use the pyramid files to display/zoom images, do you rebuild the first pyramid level or do you

[gdal-dev] Determining which .img subimage .OVR and .RRD pyramid go with

Hi all, I am trying to associate my .OVR (or RRD) pyramid file with its .img counterpart. Dealing with subimages is where it gets tricky. As I understand it, .ovr (or .rrd) is the pyramid file for . So that's simple enough. However the problem is dealing with subimages. My .img file has mu