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Why might I be losing data when computing Map Algebra using the Raster Calculator?

Question asked by bnewman@usbr.gov_USBR on Jul 25, 2017
Latest reply on Jul 26, 2017 by slynch-esristaff

Greetings,

 

I am trying to compute Map Algebra using the Raster Calculator in ArcGIS 10.5 to find the mean of a set of raster (.tif) layers. The raster layers have an 8-bit radiometric resolution so I have 256 ‘shades’ of data in each raster layer. However, after the computation, my new composite raster only has 252-254 possible data values. I kept the default parameters in the Environment settings, so I am wondering whether I missed in the Environment, or is this a glitch with ArcMap 10.5?

 

Thank you,

Brent 

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