Grayscale

Zusammenfassung

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.

Diskussion

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.

Syntax

Grayscale (raster, {conversion_parameters})

Parameter	Erläuterung	Datentyp
raster	The input raster.	Raster
conversion_parameters	The weights for each of the bands comprising the input raster. (Der Standardwert ist None)	List

Rückgabewert

Datentyp	Erläuterung
Raster	The output raster.

Codebeispiel

Grayscale example 1

This example applies the Grayscale function to the input imagery.

from arcpy.ia 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.ia 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")