MTVI2

Summary

Calculates the Modified Triangular Vegetation Index (MTVI2) from a multiband raster object and returns a raster object with the index values.

Discussion

The Modified Triangular Vegetation Index (MTVI2) method is a vegetation index for detecting leaf chlorophyll content at the canopy scale while being relatively insensitive to leaf area index. It uses reflectance in the green, red, and NIR bands.

MTVI2 = 1.5*(1.2 * (NIR - Green) - 2.5 * (Red - Green))√((2 * NIR + 1)²-(6 * NIR - 5√(Red)) - 0.5)

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

MTVI2 (raster, {nir_band_id}, {red_band_id}, {green_band_id})
ParameterExplanationData Type
raster

The input raster.

Raster
nir_band_id

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

(The default value is 7)

Integer
red_band_id

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

(The default value is 5)

Integer
green_band_id

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

(The default value is 3)

Integer
Return Value
Data TypeExplanation
Raster

The output raster object with the MTVI2 index values.

Code sample

MTVI2 example

Calculates the Modified Triangular Vegetation Index for a Landsat 8 image.

import arcpy

MTVI2_raster = arcpy.sa.MTVI2("Landsat8.tif", 5, 4, 3)

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