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Rasters comparison after load

Ulises

Maybe this one is an easy fix, but I just can't see the difference.

I have a raster dataset in a file geodatabase that looks smooth and good at all scales. I imported it to SDE geodatabase and set the same parameters for compression and pyramids (which I build after the import operation), but the raster looks very coarsely compared at small scales. Calculated statistics trying, but the results do not vary. Any suggestions are appreciated.

Thanks

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DanPatterson_Retired

Well, if that is the case, and everything is exactly as you said, then my only conclusion is that an SDE geodatabase handles pyramids and the like differently than a file geodatabase or there is a bug or something has been missed. I will defer to those that use SDE and can provide some enlightenment. Good luck

Ulises

As I zoom in the raster display better until it shows almost the same. I imagine there must be something about with the pyramids but I set the same parameters when creating them and yet can't make them display as expected. I recreated the pyramid just specifying the compression format and resampling method, but the result is the same.

DanPatterson_Retired

And when you zoom in does it still remain crummy? Nothing in the link I provided suggested any clues if everything is identical?

Ulises

Screenshots of the rasters...

File Geodatabase

SDE

DanPatterson_Retired

This link may help if it is purely a display issue

Improving the display of raster data—Help | ArcGIS for Desktop

but I didn't quickly see anything directly regarding SDE

DarrenWiens2

Can you provide a comparative screenshot? Is it just a display thing - have you applied the same kind and amount of stretching to each raster?

Ulises

Hi Dan,

yes...same cell size.

DanPatterson_Retired

little things, like are the cell sizes the same?

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