Compute Pansharpen Weights (Data Management)

Summary

Calculates an optimal set of pan sharpened weights for new or custom sensor data.

Usage

• This tool will calculate an optimal set of pan sharpened weights, which can be used in other tools that require pan sharpened weights.

• If a raster product is used as the Input Raster, the band order within the raster product template will be honored.

Parameters

Dialog

Label	Explanation	Data Type
Input Raster	A multispectral raster that has a panchromatic band.	Mosaic Dataset; Mosaic Layer; Raster Dataset; Raster Layer
Panchromatic Image	The panchromatic band associated with the multispectral raster.	Raster Layer
Band Indexes (Optional)	The band order for the pan sharpened weights. If a raster product is used as the Input Raster, the band order within the raster product template will be used.	String

Derived Output

Label	Explanation	Data Type
Pan-sharpened Weights	The output pan sharpened weights.	String

Python

arcpy.management.ComputePansharpenWeights(in_raster, in_panchromatic_image, {band_indexes})

Name	Explanation	Data Type
in_raster	A multispectral raster that has a panchromatic band.	Mosaic Dataset; Mosaic Layer; Raster Dataset; Raster Layer
in_panchromatic_image	The panchromatic band associated with the multispectral raster.	Raster Layer
band_indexes (Optional)	The band order for the pan sharpened weights. If a raster product is used as the in_raster parameter, the band order within the raster product template will be used.	String

Derived Output

Name	Explanation	Data Type
out_string	The output pan sharpened weights.	String

Code sample

ComputePansharpenWeights example 1 (Python window)

This is a Python sample for the ComputePansharpenWeights tool.

import arcpy
arcpy.ComputePansharpenWeights_management(
    "c:/data/rgb.tif", "c:/data/image.tif", "3 2 1 4")

ComputePansharpenWeights example 2 (stand-alone script)

This is a Python script sample for the ComputePansharpenWeights tool.

#Run Compute Pan Sharpen Weights tool using the bands 4,3,2,1 

import arcpy

InMSraster = "C:\\Landsat7\\L71046029_02920050705_MTL.txt\Multispectral" 
InPANraster = "C:\\Landsat7\\L71046029_02920050705_MTL.txt\Panchromatic"
band_index = "3 2 1 5"

arcpy.ComputePansharpenWeights_management(InMSraster, InPANraster, band_index)

ComputePansharpenWeights example 3 (workflow script)

This is a Python script sample to use the ComputePansharpenWeights output in another tool.

#Compute the pansharpening weights and use the results in the 
#create pansharpening tool.

try:
    import arcpy
    
    InRGBraster = "C:\\temp\\rgb.img"
    InPanraster = "C:\\temp\\pan.tif"
    
    #Compute Pan Sharpen Weights  
    out_pan_weight = arcpy.ComputePansharpenWeights_management(
        InRGBraster, InPanraster, "3 2 1 4")
    
    #Get results 
    pansharpen_weights = out_pan_weight.getOutput(0)
    
    #Split the results string for weights of each band
    pansplit = pansharpen_weights.split(";")
    
    #Run the Create pan sharpened raster dataset tool. 
    arcpy.CreatePansharpenedRasterDataset_management(
        InRGBraster, "3", "2", "1", "4", "C:\\temp\\pansharpened_raster.tif",
        InPanraster, "Gram-Schmidt", pansplit[0].split(" ")[1],  
        pansplit[1].split(" ")[1], pansplit[2].split(" ")[1],
        pansplit[3].split(" ")[1])
    
except arcpy.ExecuteError:
    print(arcpy.GetMessages())
except Exception as err:
    print(err[0])

Environments

This tool does not use any geoprocessing environments.