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What is better build pyramids or overviews in a mosaic dataset? Or do I need both

Question asked by mikeWunderlich on Oct 28, 2016
Latest reply on Oct 28, 2016 by jskinner-esristaff

Hi GeoNet Community,

 

I am new on GeoNet and have a Question, do I need a pyramid and an overview for my content in a mosaic dataset?

 

I tried it by my own, I used 3 *.tif with a size of 9Gb and tested both...

 

"Case"

Space

*.tif (3 items)

9,07Gb

*.tif (3 items) + mosaic dataset + overviews

9,33Gb

*.tif (3 items) + *.ovr (3 items) + mosaic dataset + overviews

11,5Gb

 

Of course, if I do not build the pyramids the overviews would be more but the size of the overviews is small in comparison with the pyramids but where is the difference?


And I know that the loading of one tiff would take more time, but I will handle all tiffs as a mosaic.

 

Thanks a lot,

Mike

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