https://community.esri.com/t5/arcgis-api-for-python-questions/access-mosaic-dataset-raster-via-python-api/m-p/1284603#M8644 <P>Hello&nbsp;</P><P>I am trying to work on some raster via Python API. even if the documentation and the videos are very explicative I didn`t find anything on this subject.</P><P>As far as I know a Mosaic dataset is a special type of&nbsp; `layer` where each attribute in the attribute table points to a specific raster stored somewhere.&nbsp;</P><P>now let`s say that I want to do some processing on some rasters in the mosaic. for example a minus operation on two rasters stored in the mosaic.</P><P>how do I access a single raster into the mosaic? this is the procedure that I am using.&nbsp;</P><LI-CODE lang="python">try: gis = GIS("https://Myportal", username="usr", password="pwd") except Exception as e: print("An exception occurred: ", e) #accessing my mosaic dataset item lyr1 = gis.content.get('7d562782877aec8fc3') #accessing my mosaic layer lyr1 = lyr1.layers[0] #filtering my mosaic layer to isolate only one raster inside it filtered_lyr1 = lyr1.filter_by(where="objectid = 10") filtered_lyr2 = lyr1.filter_by(where="objectid = 9") #applying processing functions to the layers processedLyr = apply(filtered_lyr1 , 'DBX_Bathy_Hillshade') </LI-CODE><P>&nbsp;</P> Tue, 02 May 2023 07:26:52 GMT federicomoroni 2023-05-02T07:26:52Z https://community.esri.com/t5/arcgis-api-for-python-questions/access-mosaic-dataset-raster-via-python-api/m-p/1284603#M8644 <P>Hello&nbsp;</P><P>I am trying to work on some raster via Python API. even if the documentation and the videos are very explicative I didn`t find anything on this subject.</P><P>As far as I know a Mosaic dataset is a special type of&nbsp; `layer` where each attribute in the attribute table points to a specific raster stored somewhere.&nbsp;</P><P>now let`s say that I want to do some processing on some rasters in the mosaic. for example a minus operation on two rasters stored in the mosaic.</P><P>how do I access a single raster into the mosaic? this is the procedure that I am using.&nbsp;</P><LI-CODE lang="python">try: gis = GIS("https://Myportal", username="usr", password="pwd") except Exception as e: print("An exception occurred: ", e) #accessing my mosaic dataset item lyr1 = gis.content.get('7d562782877aec8fc3') #accessing my mosaic layer lyr1 = lyr1.layers[0] #filtering my mosaic layer to isolate only one raster inside it filtered_lyr1 = lyr1.filter_by(where="objectid = 10") filtered_lyr2 = lyr1.filter_by(where="objectid = 9") #applying processing functions to the layers processedLyr = apply(filtered_lyr1 , 'DBX_Bathy_Hillshade') </LI-CODE><P>&nbsp;</P> Tue, 02 May 2023 07:26:52 GMT https://community.esri.com/t5/arcgis-api-for-python-questions/access-mosaic-dataset-raster-via-python-api/m-p/1284603#M8644 federicomoroni 2023-05-02T07:26:52Z