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I am adding external overviews to a number of TIF files with GDAL as follows:

gdaladdo -ro file.tif 2 4 8 16 --config COMPRESS_OVERVIEW LZW

Then, when I add the tif file to ArcGis is still asking me if I want to build pyramids. It seems that the .ovr file is not fully recognized. Any suggestion?

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I found that ArcGIS when creates the pyramids on a raster added in a data frame, by default sets 8 levels of pyramids. If in gdal I add 8 levels, then ArcGIS it doesn't ask me again if I want to create the pyramids. So the GDAL command is:

gdaladdo -ro file.tif 2 4 8 16 32 64 128 256 --config COMPRESS_OVERVIEW LZW

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