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Inquiry about overlapping same area processing when merging images

https://forum.earthdata.nasa.gov/viewtopic.php?t=5960

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Inquiry about overlapping same area processing when merging images

Posted: Wed Sep 18, 2024 10:18 pm America/New_York
by seongjunlee
Hello. I am Seong-jun Lee, and I have a question about HLS data.

The attached picture is the HLS L30 tile that shot Korea for one day on September 15.

I'm trying to merge the images (using GDAL) from this day into one image and I want to know how to deal with the overlapping areas of the rectangle.

Do I just need to average all the band-specific values of the overlapping parts?

Re: Inquiry about overlapping same area processing when merging images

Posted: Thu Sep 19, 2024 10:18 am America/New_York
by LP DAAC-EDL - lien
Hi Seong-jun Lee,
It may work, but I can't give you a definitive answer on that. I would like to suggest to you our AppEEARS tool: https://appeears.earthdatacloud.nasa.gov
HLS is available in AppEEARS and it does all this automatically. You can make an area sample request and it mosaics and does all the processing. It does use components of Gdal.
Thanks,
LPDAAC
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