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Module Name

Otsu Threshold

CT Grayscale Data
After OtsuThresholdFilter applied with default settings

General Information

Module Type & Category

Type: CLI

Category: Filtering

Authors, Collaborators & Contact

  • Author: Bill Lorensen
  • Contact: bill.lorensen at

Module Description

Overview of what the module does goes here.


Examples, Use Cases & Tutorials

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  • Link to examples of the module's use
  • Link to any existing tutorials

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Other modules or packages that are required for this module's use.

Known bugs

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Source code & documentation

Source Code: OtsuThreshold.cxx

XML Description: OtsuThreshold.xml


./OtsuThresholdImageFilter  [--processinformationaddress <std::string>]
                            [--xml] [--echo] [--numberOfBins <int>]
                            [--outsideValue <int>] [--insideValue <int>]
                            [--] [--version] [-h] <std::string>


--processinformationaddress <std::string>
  Address of a structure to store process information (progress, abort,
  etc.). (default: 0)

  Produce xml description of command line arguments (default: 0)

  Echo the command line arguments (default: 0)

--numberOfBins <int>
  The number of bins in the histogram (default: 128)

--outsideValue <int>
  The value assigned to pixels that are outside the computed threshold
  (default: 255)

--insideValue <int>
  The value assigned to pixels that are inside the computed threshold
  (default: 0)

--,  --ignore_rest
  Ignores the rest of the labeled arguments following this flag.

  Displays version information and exits.

-h,  --help
  Displays usage information and exits.

  (required)  Input volume to be filtered

  (required)  Output filtered

Description: This filter creates a binary thresholded image that
separates an image into foreground and background components. The filter
computes the threshold using the algorthm described in 'xxx', applies
that threshold to the input image using the BinaryThresholdImageFilter.
The NumberOfHistogram bins can be set for the Otsu Calculator. The
insideValue and outsideValue can be set for the

Author(s): Bill Lorensen

Acknowledgements: This command module was derived from Insight/Examples
(copyright) Insight Software Consortium

More Information


This work is part of the National Alliance for Medical Image Computing (NAMIC), funded by the National Institutes of Health through the NIH Roadmap for Medical Research, Grant U54 EB005149. Information on the National Centers for Biomedical Computing can be obtained from National Centers for Biomedical Computing.