Normalised Difference Built-up Index (NDBI)

Normalized Difference Built-up Index (NDBI) is used to extract built-up features and have indices range from -1 to 1. These procedures are similar to creating NDVI output.

NDBI equation

Steps

  • Open Raster Tab

  • Select Unsupervised button

  • Click NDVI from the options and Select OK.

NDBI option in Raster tab

  • Open Output image.

NDBI output