Spectral Signature

Spectral Graph

In multispectral or hyperspectral imagery, each pixel contains information from multiple bands across the electromagnetic spectrum. Plotting these pixel values for a selected location or the mean of the pixel values for a selected area across these bands is referred to as a spectral graph. It helps to understand how the pixel characteristics vary across the bands. These spectral graphs are also used to compare the different pixels’ spectral characteristics in the AOI.

You can choose multiple points to create and compare spectral graphs of those points. Just click on the + Add button to create additional points. These graphs can be exported in CSV and JSON format.