MSAVI

サマリー

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

説明

Modified Soil Adjusted Vegetation Index (MSAVI2) メソッドは、SAVI での露出土壌の影響を最小限に抑えます。

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.

構文

MSAVI (raster, {nir_band_id}, {red_band_id})
パラメーター説明データ タイプ
raster

The input raster.

Raster
nir_band_id

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

(デフォルト値は次のとおりです 4)

Integer
red_band_id

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

(デフォルト値は次のとおりです 3)

Integer
戻り値
データ タイプ説明
Raster

The output raster object with the MSAVI2 index values.

コードのサンプル

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)