Binary Morphological Operation¶

Detailed description¶

This application performs binary morphological operations on a mono band image

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 BinaryMorphologicalOperation .

Input Image The input image to be filtered.

Feature Output Image Output image containing the filtered output image.

Selected Channel The selected channel index.

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

Structuring Element Type Choice of the structuring element type. Available choices are:

• Ball

• The Structuring Element X Radius : The Structuring Element X Radius.
• The Structuring Element Y Radius : The Structuring Element Y Radius.
• Cross

Morphological Operation Choice of the morphological operation. Available choices are:

• Dilate

• Foreground Value : The Foreground Value.
• Background Value : The Background Value.
• Erode

• Foreground Value : The Foreground Value.
• Background Value : The Background Value.
• Opening

• Foreground Value : The Foreground Value.
• Background Value : The Background Value.
• Closing

• Foreground Value : The Foreground 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_BinaryMorphologicalOperation -in qb_RoadExtract.tif -out opened.tif -channel 1 -structype.ball.xradius 5 -structype.ball.yradius 5 -filter erode

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

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

BinaryMorphologicalOperation.SetParameterString("out", "opened.tif")

BinaryMorphologicalOperation.SetParameterInt("channel", 1)

BinaryMorphologicalOperation.SetParameterInt("structype.ball.xradius", 5)

BinaryMorphologicalOperation.SetParameterInt("structype.ball.yradius", 5)

BinaryMorphologicalOperation.SetParameterString("filter","erode")

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