Change Detection Wizard Output different than Preview

09-16-2021 01:51 PM
New Contributor II

I am attempting to use the Change Detection Wizard to measure the amount of Shrub/Scrub that changed to something else between 2001 and 2019.


When I use the settings in the figure and click the Preview button I get the following correct preview:


When I continue onto the next step in the Change Detection Wizard to create a final output it looks like this:


The tool outputs a change image for all of classes instead of just the change from Shrub/Scrub. Any idea what I am doing wrong?

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2 Replies
MVP Esteemed Contributor

can't tell from your images....

are you following this?

Categorical change detection—ArcGIS Pro | Documentation

... sort of retired...
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New Contributor

The doc includes the following note:
"The preview layers are generated using raster functions. When zoomed out beyond the source resolution, raster functions process the data using a resampled pixel size. To ensure the preview looks the way you want to see in your final result, zoom to the source resolution of the data. Right-click the preview layer and click Zoom to Source Resolution."

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