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# interfaces.slicer.filtering.thresholdscalarvolume

## ThresholdScalarVolume

Link to code

Wraps command **/home/raid3/gorgolewski/software/slicer/Slicer –launch ThresholdScalarVolume **

title: Threshold Scalar Volume

category: Filtering

description: <p>Threshold an image.</p><p>Set image values to a user-specified outside value if they are below, above, or between simple threshold values.</p><p>ThresholdAbove: The values greater than or equal to the threshold value are set to OutsideValue.</p><p>ThresholdBelow: The values less than or equal to the threshold value are set to OutsideValue.</p><p>ThresholdOutside: The values outside the range Lower-Upper are set to OutsideValue.</p><p>Although all image types are supported on input, only signed types are produced.</p><p>

version: 0.1.0.$Revision: 2104 $(alpha)

documentation-url: http://wiki.slicer.org/slicerWiki/index.php/Documentation/4.1/Modules/Threshold

contributor: Nicole Aucoin (SPL, BWH), Ron Kikinis (SPL, BWH)

acknowledgements: 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.

Inputs:

    [Mandatory]

    [Optional]
    InputVolume: (an existing file name)
            Input volume
    OutputVolume: (a boolean or a file name)
            Thresholded input volume
    args: (a string)
            Additional parameters to the command
    environ: (a dictionary with keys which are a value of type 'str' and with values which
             are a value of type 'str', nipype default value: {})
            Environment variables
    ignore_exception: (a boolean, nipype default value: False)
            Print an error message instead of throwing an exception in case the interface fails to
            run
    lower: (an integer)
            Lower threshold value
    outsidevalue: (an integer)
            Set the voxels to this value if they fall outside the threshold range
    threshold: (an integer)
            Threshold value
    thresholdtype: ('Below' or 'Above' or 'Outside')
            What kind of threshold to perform. If Outside is selected, uses Upper and Lower values.
            If Below is selected, uses the ThresholdValue, if Above is selected, uses the
            ThresholdValue.
    upper: (an integer)
            Upper threshold value

Outputs:

    OutputVolume: (an existing file name)
            Thresholded input volume