In the Scatter plot window, middle-click and drag the box outline that appears. To zoom to an area within the scatter plot, select Options > Scatter:Zoom.The Scatter Plot Band Choice dialog appears.Ĭhoose the x and y axes for the scatter plot by selecting the desired bands in the Choose Band X and Choose Band Y columns.
Here are some basic instructions for using the dialog.įrom the Display group menu bar, select Tools > 2D Scatter Plots.
You can also show the density distribution of the scatter plot.įor complete details on using the Scatter plot window, see the topic 'Using 2D Scatter Plots' in the ENVI Classic Help. Dancing pixels show how the distribution of pixels under a box changes as you move it interactively in both the scatter plot and image. You can select ROIs in the scatter plots and save them for use in other full band processing techniques. Two-dimensional scatter plots use only the data in the Image window so quick interactive response is provided. If desired, you can have multiple scatter plots active simultaneously. Use 2D Scatter Plots to interactively classify two bands of image data. See Scatter Plots for the recommended method for using scatter plots in ENVI. This topic describes how to use 2D scatter plots with an ENVI Classic display group.