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How to view and save training sample AOIs from a previous IMAGINE Objective project.

by Technical Evangelist on ‎01-05-2018 02:17 PM (1,006 Views)

Question

After opening an existing feature extraction in IMAGINE Objective a user may have difficulty viewing the AOIs that were used to collect training samples. They may also want to save the training sample AOIs to a file separate from the feature project file.

Answer

To view a training sample AOI, the first thing to do is open the Training Sample Viewer.

IMAGINE Objective Workstation > View menu > Show Training Sample Viewer

Next, select the Training tab and click in a cell under the exclusive selection column (i.e., the ">" column directly on the right side of the Sample column) and it will display the selected training sample and the AOI in the Training Sample Viewer. 

 

To save a training sample AOI, use the steps outlined above to display the AOI in the Training Sample Viewer first, then click on the AOI to select it. Next, right-click in the Training Sample Viewer and choose Arrange Layers from the Training Sample View menu. In the Arrange Layers dialog you should be able to right-click on the AOI layer and choose Save Layer to save that AOI polygon to a .aoi file. 

 

 

Comments
by
on ‎05-14-2020 08:00 PM

Is there a workflow that will allow the user to save all of the training sample AOI polygons to a single AOI file?

by Technical Evangelist
on ‎05-15-2020 07:13 AM

There isn’t a quick and easy way to do this, but it’s possible. Save each training sample AOI to it’s own file first using the instructions in the article. After all of the AOIs have been saved to individual files open your raster image in an ERDAS IMAGINE 2D View, then add all of the AOI files to the same 2D View. You can select all of the AOI files in a Windows File Explorer window then drag-and-drop them into the 2D View. This will combine all of the AOIs into a single AOI layer. Now click on the File tab and select Save As > AOI Layer As and provide a name and location for the AOI file.

 

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