The Spectra Extraction window displays the channels in the regions of interest in a table and is linked to the Spectra Plotting window. The spectra table lists the channels used to generate endmember or sample signatures from selected pixels within a region of interest. You can either choose a channel as a region of interest or create a new channel and draw a bitmap mask over the region in the view pane.
The Spectra Extraction window lets you specify details for a region of interest, edit the spectra list in the spectra table, change spectra attributes, and adjust layer opacity.
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