Creating a histogram to view and test training sites

From the Training Site Editor, right-click in a class and click Histogram.

In the Class Histogram Display window, the x-axis in the histogram represents the gray-level value for the image channel with a range of 0 to 255. The y-axis shows the frequency count as a percentage of the total count of pixels in the training area corresponding to the gray value.

Parent topic: Analyzing training sites
Next topic: Testing signature separability

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