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Mosaic To New Raster creating nodata cells for 255

Question asked by curtvprice Champion on Mar 9, 2017
Latest reply on Mar 10, 2017 by curtvprice

I am running into a problem that I cannot reproduce with small datasets. 


I am merging a massive number of rasters with the "MAXIMUM" option - most of the inputs are NoData at each cell and one value in one of the input rasters. I am specifying: 


arcpy.MosaicToNewRaster_management(huge_list, outFolder, outName", "32_BIT_SIGNED", "", 1, "MAXIMUM")


If my input cell is of value 255, (max of Nodata (x N), 255)  I am getting NoData out.  Looks like a bit depth / NoData handling issue to me.


I'd sent it to support but I can't easily reproduce with test data so I thought I'd ask around here first.


I will probably use the Cell Statistics tool to work around the problem, as it seems to have fewer bit depth issues.