PixelValue - 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 [1] presents a summary of these parameters and the parameters keys to be used in command-line and programming languages. Application key is PixelValue .

[1]Table: Parameters table for Pixel Value.
Parameter Key Parameter Name Parameter Type
in Input Image Input image
coordx Col index Int
coordy Line index Int
cl Channels List
value Pixel Value String
inxml Load otb application from xml file XML input parameters file
outxml Save otb application to xml file XML output parameters file
  • 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.