Pansharpening¶

Perform P+XS pansharpening

Detailed description¶

This application performs P+XS pansharpening. Pansharpening is a process of merging high-resolution panchromatic and lower resolution multispectral imagery to create a single high-resolution color image. Algorithms available in the applications are: RCS, bayesian fusion and Local Mean and Variance Matching(LMVM).

Parameters¶

This section describes in details the parameters available for this application. Table [1] presents a summary of these parameters and the parameters keys to be used in command-line and programming languages. Application key is Pansharpening .

[1]	Table: Parameters table for Pansharpening.

Parameter Key	Parameter Type	Parameter Description
inp	Input image	Input image
inxs	Input image	Input image
out	Output image	Output image
method	Choices	Choices
method rcs	Choice	RCS
method lmvm	Choice	LMVM
method bayes	Choice	Bayesian
method.lmvm.radiusx	Int	Int
method.lmvm.radiusy	Int	Int
method.bayes.lambda	Float	Float
method.bayes.s	Float	Float
ram	Int	Int
inxml	XML input parameters file	XML input parameters file
outxml	XML output parameters file	XML output parameters file

Input PAN Image: Input panchromatic image.
Input XS Image: Input XS image.
Output image: Output image.

Algorithm Selection of the pan-sharpening method. Available choices are:

RCS : Simple RCS Pan sharpening operation.
LMVM : Local Mean and Variance Matching (LMVM) Pan sharpening.

X radius : Set the x radius of the sliding window.

Y radius : Set the y radius of the sliding window.

Bayesian : Bayesian fusion.

Weight : Set the weighting value.

S coefficient : Set the S coefficient.

Available RAM (Mb) Available memory for processing (in MB).

Load otb application from xml file Load otb application from xml file.

Save otb application to xml file Save otb application to xml file.

Example¶

To run this example in command-line, use the following:

otbcli_Pansharpening -inp QB_Toulouse_Ortho_PAN.tif -inxs QB_Toulouse_Ortho_XS.tif -out Pansharpening.tif uint16

To run this example from Python, use the following code snippet:

#!/usr/bin/python

# Import the otb applications package
import otbApplication

# The following line creates an instance of the Pansharpening application
Pansharpening = otbApplication.Registry.CreateApplication("Pansharpening")

# The following lines set all the application parameters:
Pansharpening.SetParameterString("inp", "QB_Toulouse_Ortho_PAN.tif")

Pansharpening.SetParameterString("inxs", "QB_Toulouse_Ortho_XS.tif")

Pansharpening.SetParameterString("out", "Pansharpening.tif")
Pansharpening.SetParameterOutputImagePixelType("out", 3)

# The following line execute the application
Pansharpening.ExecuteAndWriteOutput()

Limitations¶

None

Authors¶

This application has been written by OTB-Team.