Pixel Value

4.10.8 Pixel Value

Get the value of a pixel.

Detailed description

Get the value of a pixel.
Pay attention, index starts at 0.

Parameters

This section describes in details the parameters available for this application. Table 4.174, page 851 presents a summary of these parameters and the parameters keys to be used in command-line and programming languages. Application key is PixelValue.


Parameter key	Parameter type	Parameter description


in	Input image	Input Image
coordx	Int	Col index
coordy	Int	Line index
cl	List	Channels
value	String	Pixel Value
inxml	XML input parameters file	Load otb application from xml file
outxml	XML output parameters file	Save otb application to xml file

Table 4.174: Parameters table for Pixel Value.

Input Image: Input image
Col index: Column index of the wanted pixel (starts at 0).
Line index: Line index of the wanted pixel (starts at 0).
Channels: Displayed channels
Pixel Value: Pixel radiometric value
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_PixelValue -in QB_Toulouse_Ortho_XS.tif -coordx 50 -coordy 100 -cl Channel1

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 PixelValue application
PixelValue = otbApplication.Registry.CreateApplication("PixelValue")

# The following lines set all the application parameters:
PixelValue.SetParameterString("in", "QB_Toulouse_Ortho_XS.tif")

PixelValue.SetParameterInt("coordx", 50)

PixelValue.SetParameterInt("coordy", 100)

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

Limitations

None

Authors

This application has been written by OTB-Team.

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