How to segment raster data?

KarenSchulz — Sun, 12 Dec 2021 10:29:08 GMT

I am new to arcgis and appreciate any feedback and help 😃

My aim: I would like to segment a raster image through the python api in the same manner as it is possible with the graphical interface.

My coding approach (using jupyter notebook), that didn't work##:

# import dependencies
import arcgis
from arcgis.gis import GIS
from arcgis.raster import Raster
from arcgis.raster.analytics import *

# set credentials

gis = GIS(<credentials>)

# load raster image, which is a tiff-file

file_path = r"<path>.tif"
raster_img = Raster(file_path)

# use segment function

segment(input_raster=raster_img)

# throws error:

AttributeError: '_ArcpyRaster' object has no attribute '_engine_obj'

Also tried using a different image from the online resources:
items2 = gis.content.search("title: multispectral landsat", item_type="Imagery Layer", outside_org=True) 
landsat_layer = items2[0].layers[0]

This lead to a different error:

AttributeError: 'NoneType' object has no attribute 'update'

Re: How to segment raster data?

KarenSchulz — Mon, 12 Oct 2020 11:01:14 GMT

So, I found a solution for the .tif raster file(1st example) - using arcgis.raster.functions.segment_mean_shift() works properly. The input data type was apparently a reason for the segment() function to not work.
Nevertheless, I still don't see why the example above didn't work for the imagery input type example (2nd one) or how to convert imagery layer data into raster data and vice versa.

topic Re: How to segment raster data? in ArcGIS API for Python Questions

How to segment raster data?

Re: How to segment raster data?