Launching the Accuracy Assessment window

Accuracy assessments determine the correctness of the classified image, which is based on pixel groupings. Accuracy is a measure of the agreement between a standard that is assumed to be correct and an image classification of unknown quality. If the image classification corresponds closely with the standard, it is said to be accurate.

To launch the Accuracy Assessment window from the Focus application window, do the following:
1. From the Analysis menu, select Image Classification > Post Classification Analysis > Accuracy Assessment .
2. In the File Selector window, locate and select the file containing the classified channel you want to check for accuracy, and click Open.
To open the Accuracy Assessment window during classification, do the following:
1. From the Maps tree, right-click Classification MetaLayer.
2. Select Post-classification Analysis > Accuracy Assessment.