4.5.6. Spectral distance¶

_images/spectral_distance_tab.jpg — Spectral distance¶

spectral_distance — Spectral distance¶

This tab allows for calculating the spectral distance between every corresponding pixel of two band sets. The output is a raster containing the spectral distance of each pixel. Optionally, a threshold can be defined for creating a binary raster (0-1) of values below and above the threshold.

This tool supports virtual raster output; if the output file name ends with .vrt then the output is created as virtual raster composed of as many .tif files as the number of CPU threads defined in System; for large rasters this can speed up the process.

4.5.6.1. Spectral distance of band sets ¶

Select first input band set : select the first input Band set;
Select second input band set : select the second input Band set;
Distance algorithm Minimum Distance Spectral Angle Mapping: select Minimum Distance or * Spectral Angle Mapping for spectral distance calculation;
Distance threshold : if checked, a binary raster of values below and above the threshold is created;
BATCH : add this function to the Batch;
RUN : choose the output destination and start the calculation;