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3
votes
1answer
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Generate a pyramid of tiles by 1/2 scaling a higher zoom level

Given a set of tiles covering a large area at a particular zoom level (These are online on someone's tile server and will need scraping, but let's assume these are on disk if it's easier. With TMS ...
4
votes
1answer
427 views

GDAL: How to build an image pyramid starting from the base

Normally I would create an Image Pyramid using gdal_retile.py on one large image or a set of large images. I want to do the opposite. I have all the zoomed in tiles on the base level and I want to ...