Grayscale

Synthèse

Converts a multiband image to a single-band grayscale image. Specified weights are applied to each of the input bands, and a normalization is applied for output.

Discussion

For more information about how this function works, see the Grayscale 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.

Syntaxe

Grayscale (raster, {conversion_parameters})

Paramètre	Explication	Type de données
raster	The input raster.	Raster
conversion_parameters	The weights for each of the bands comprising the input raster. (La valeur par défaut est None)	List

Valeur renvoyée

Type de données	Explication
Raster	The output raster.

Exemple de code

Grayscale example 1

This example applies the Grayscale function to the input imagery.

from arcpy.sa import *
out_grayscale_raster = Grayscale("imagery.tif")
out_grayscale_raster.save("C:/arcpyExamples/outputs/grayscale.tif")

Grayscale example 2

This example applies the Grayscale function to the input imagery.

# Import the system modules
import arcpy
from arcpy.sa import *

# Set the analysis environments
arcpy.env.workspace = "C:/arcpyExamples/data"

# Set the local variables
in_raster = "imagery.tif"

# Execute the Grayscale function
out_grayscale_raster = Grayscale(in_raster)

# Save the output
out_grayscale_raster.save("C:/arcpyExamples/outputs/grayscale.tif")