topic Re: Mosaic Dataset Overview Image Parameters not honored when defined via arcpy in Geoprocessing Questions https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312652#M10836 <HTML><HEAD></HEAD><BODY><P>It is arcpy with ArcGIS Desktop.</P></BODY></HTML> Tue, 05 Feb 2019 13:44:54 GMT NicolasDechamps1 2019-02-05T13:44:54Z Mosaic Dataset Overview Image Parameters not honored when defined via arcpy https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312650#M10834 <HTML><HEAD></HEAD><BODY><P>Hi!</P><P></P><P>I am using arcpy.DefineOverviews_management() to define Mosaic Dataset Overviews, passing the parameters&nbsp; resampling_method='NEAREST' and&nbsp;compression_method='LZW', but these settings DO NOT take effect. When I later build the Overviews and open an image file in an image viewer, I find out that it has been generated with JPEG compression!</P><P></P><P>When I use the corresponding GP-Tool "Define Overviews" in the UI with the exact same parameters/settings, then my Overviews are generated with compression LZW as I wanted.</P><P></P><P>For the life of me, I cannot find out why this doesn't work when scripted...?</P><P></P><P>When I output GP-Messages from the script with&nbsp;arcpy.GetMessages() it even confirms that NEAREST and LZW have been passed as parameters.</P><P></P><P>Thanks for any help!</P><P>Nicolas</P></BODY></HTML> Tue, 05 Feb 2019 12:27:41 GMT https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312650#M10834 NicolasDechamps1 2019-02-05T12:27:41Z Re: Mosaic Dataset Overview Image Parameters not honored when defined via arcpy https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312651#M10835 <HTML><HEAD></HEAD><BODY><P>ArcMap or ArcGIS Pro?&nbsp; arcpy is not the same between the versions, so something may be amiss&nbsp;</P></BODY></HTML> Tue, 05 Feb 2019 13:18:05 GMT https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312651#M10835 DanPatterson_Retired 2019-02-05T13:18:05Z Re: Mosaic Dataset Overview Image Parameters not honored when defined via arcpy https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312652#M10836 <HTML><HEAD></HEAD><BODY><P>It is arcpy with ArcGIS Desktop.</P></BODY></HTML> Tue, 05 Feb 2019 13:44:54 GMT https://community.esri.com/t5/geoprocessing-questions/mosaic-dataset-overview-image-parameters-not/m-p/312652#M10836 NicolasDechamps1 2019-02-05T13:44:54Z