Introduction: Returns Normalized Difference between two bands(band2 and band1) in a Geotiff image(example: NDVI, NDBI)
Format: RS_NormalizedDifference (Band1: ARRAY[Double], Band2: ARRAY[Double])
Return type: Array<Double>
Since: v1.1.0
SQL Example
val normalizedDF = spark.sql("select RS_NormalizedDifference(band1, band2) as normdifference from dataframe")