Why would an 8 bit raster create an image cache service twice the size of a 16 bit?

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07-19-2019 05:53 AM
KyleCrawford2
New Contributor III

While creating a cached image service I noticed that the estimate cache size was more than double a previously created cache. The only difference was the smaller image cache was created on a 16 bit raster vs the new image service would be using an 8 bit raster. Can anyone explain why or what would cause this massive difference in cache size (30 GB vs 80 GB)?

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DanPatterson_Retired
MVP Esteemed Contributor

Configure an image service—ArcGIS Pro | ArcGIS Desktop 

would there be any differences in compression methods used?

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