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Assistant de classification d'image non activé ?

ChrisWilson2

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Bonjour à tous,

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Notre administrateur m'a attribué une licence spatial analyst pour Arc Pro et il semble que je puisse utiliser les outils de classification d'image dans ArcToolbox. Avant cela, je dois générer des zones d'entraînement pour une classification supervisée par maximum de vraisemblance, mais les outils de classification d'image sont grisés, y compris l'assistant - cela semble être la seule façon de générer des zones d'entraînement dans Pro, et j'aimerais le faire de cette manière. Avez-vous une idée pourquoi je ne peux pas voir les outils ? J'essaie aussi de vérifier s'il y a un problème avec l'installation, mais pour l'instant je suis perplexe.

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Je tourne sous la version 2.0.0

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Merci,

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Chris

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leticia_duarte

Make sure that the Image Analyst extension is available on the licensing area. If under the column "Licensed" it appears as "No", it means you have to access ArcGIS Online to select you as a member of your company and enable the extensions needed. Also, you can try to replace the default URL (https://www.arcgis.com/) of the licensing Portal, to the URL of your company (https://organizationname.maps.arcgis.com/), in case you have one.

Read the details about this in here: https://pro.arcgis.com/en/pro-app/latest/get-started/start-arcgis-pro-with-a-named-user-license.htm

leticia_duarte

The classification wizard in only enabled for 3-band, 8-bit images. Maybe your raster is floating point or other format non-available for this wizard.

VinayViswambharan1

Hi - You typically run into this issue, if you dont have an image selected in your contents pane.

regards,

Vinay

DanPatterson_Retired

Strange.... I always start mine with Blank

RandyWiggins

I had a similar issue with the Classification Wizard being grayed out in ArcPro. After a lot of trial and error we discovered it was due to the fact that I was not creating my projects using the Map.aptx template. Once I started using the Map.aptx template, the issue disappeared.

DanPatterson_Retired

I just check again Jorgen, Spatial Analyst licensed, a *.tiff as an image, but the wizard remains inaccessible but the Classification tools are... even though it was a multiband tiff but not displaying as rgb

I suspect that it is the image type since if I loaded some random picture that loaded as an RGB symbology layer, it became enabled.

It is nice to know though that, I can classify a screen grab in *.png format of the Notepad++ screen

Jørgen_HåstøBorgenvik

Having the same problem as you, Chris!

Did you ever find a solution for it?

Cheers,
Jørgen.

DanPatterson_Retired

With some hope... apparently people have gotten further before they hit an error sadly, this doesn't apply specifically to your cases

ChrisWilson2

Will be good to see how you get on. In the meantime I am performing an unsupervised classification using Toolbox and working back from there, rather than defining training areas first. The other alternative is trying dedicated remote sensing software, which I may be able to access.

deleted-user-aARNnP_qOGDY

Hi Chris,

I'm having the exact same problem. No idea what's going on but I'm trying to get in touch with Esri support and I'll reply here if I find a solution.

Jason

ChrisWilson2

Hi Dan. Yes, been there as well, no clue. I find the ESRI documentation on this is somewhat lacking on the troubleshooting side, but perhaps I have an unusual issue!

DanPatterson_Retired

No clue then, If you can select the image in ArcMap and everything works, then contact the person who issued the license and see what else has been missed.

This is where you check in pro so we are on the same page

ChrisWilson2

Hi Dan,

As I've explained above the image classification tools are greyed out and unselectable. I have read the documentation you have posted, but the greying out of the tools prevents both approaches being tried. I am assuming that this has something to do with the status of the spatial analyst extension/installation as I do have the extension assigned by our administrator from AGOL. I can see no documentation now on how to ensure that the extension is present and enabled in Pro. As you noted, it used to be a case of manually enabling it in ArcMap, but this is no longer the case in Pro.

Edit - I have looked in Licensing within Pro and confirmed that Spatial Analyst is enabled, yet still upon selecting a raster (jpeg or img) the classification tools and wizard remain greyed out.

I would like to solve this early this week if possible, so any further responses are welcome.

Thanks,

Chris

DanPatterson_Retired

Image Classification Wizard help...

The Classification Wizard is found in the Image Classification group under the Imagery tab, which can be invoked when a raster dataset is selected in the Contents pane.

Experienced users may wish to invoke individual tools available in the Classification Tools drop-down menu in the Image Classification group.

Are either of those approaches not working?

Normally in ArcMap, you have to turn on the spatial analyst extension from within the Customize, Extensions menu, but there is not an option to do that within Pro.

You should check that the extension is not only installed but registered if this is not the case.

http://pro.arcgis.com/en/pro-app/get-started/licensing-arcgis-pro.htm

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