The county I work for has aerial photography in 3", 6" and 12" resolutions, depending on what the various municipalities wanted to pay for. We want to convert the 3" and 6" data to 12" (maybe copy is a better word! not looking to get rid of higher resolution data.). There are technical and political reasons behind this. Anyway, I've done this before, but it was a while ago and don't remember how I did it. Any ideas? Thanks.
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If it was me I would build caches of it all. We just did that and got a 90% size reduction and a 10x increase in speed. Plus they are super easy to copy around.
If you do not know how see this post Create Cache and TPK without ArcGIS for Server - Workflows for Desktop users
Thanks all. Resample is what I was thinking of. We will build a cache from the rasters. For some reason, I forget what, some server issue probably, we don't want a mosaic dataset. That was my first idea. I ended up resampling the data into raster catalogs.