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MSAVI

Zusammenfassung

Calculates the Modified Soil Adjusted Vegetation Index (MSAVI2) from a multiband raster object and returns a raster object with the index values.

Auswertung

Der Modified Soil Adjusted Vegetation Index (MSAVI2) versucht, die Auswirkung des nackten Erdbodens auf den SAVI zu minimieren.

MSAVI2 = (1/2) * (2 * (NIR +1) - sqrt((2 * NIR + 1)2-8(NIR - Red)))

For information about other multiband raster indexes, see the Band Arithmetic raster function.

The referenced raster dataset for the raster object is temporary. To make it permanent, you can call the raster object's save method.

Syntax

MSAVI (raster, {nir_band_id}, {red_band_id})
ParameterErklärungDatentyp
raster

The input raster.

Raster
nir_band_id

The band ID of the near-infrared band. The ID index uses one-based indexing.

(Der Standardwert ist 4)

Integer
red_band_id

The band ID of the red-edge band. The ID index uses one-based indexing.

(Der Standardwert ist 3)

Integer
Rückgabewert
DatentypErklärung
Raster

The output raster object with the MSAVI2 index values.

Codebeispiel

MSAVI example

Calculates the Modified Soil Adjusted Vegetation Index for a Landsat 8 image.

import arcpy

MSAVI_raster = arcpy.ia.MSAVI("Landsat8.tif", 5, 4)