mitk::MaskCleaningOperation Class Reference

Provides static methods for cleaning and filtering segmentation masks. More...

#include <mitkMaskCleaningOperation.h>

Static Public Member Functions
static Image::Pointer	RangeBasedMasking (Image::Pointer &image, Image::Pointer &mask, bool lowerLimitOn=false, double lowerLimit=0, bool upperLimitOn=false, double upperLimit=1)
	Remove mask voxels where the corresponding image intensity is outside a given range. More...
static Image::Pointer	MaskOutlierFiltering (Image::Pointer &image, Image::Pointer &mask)
	Remove mask voxels where image intensities are statistical outliers. More...

Detailed Description

Provides static methods for cleaning and filtering segmentation masks.

The MaskCleaningOperation class provides operations to refine binary segmentation masks based on the intensity values of a corresponding grey-scale image. Supported operations include range-based masking (removing mask voxels outside a specified intensity range) and statistical outlier filtering (removing mask voxels where intensities fall outside three standard deviations from the mean).

It is assumed that the segmentation mask is of type "unsigned short".

See also

ArithmeticOperation, TransformationOperation

Definition at line 35 of file mitkMaskCleaningOperation.h.

Member Function Documentation

MaskOutlierFiltering()

static Image::Pointer mitk::MaskCleaningOperation::MaskOutlierFiltering ( Image::Pointer &  image, Image::Pointer &  mask  )

static

Remove mask voxels where image intensities are statistical outliers.

Computes the mean ( \(\mu\)) and standard deviation ( \(\sigma\)) of the image intensities within the masked region, then removes all mask voxels where the corresponding image intensity falls outside the range \([\mu - 3\sigma, \mu + 3\sigma]\).

Internally delegates to RangeBasedMasking() with the computed statistical bounds.

Parameters

[in]	image	Grey-scale image providing the intensity values for outlier detection.
[in]	mask	Original binary mask (unsigned short) defining the region of interest.

Returns

A new mask image with outlier voxels set to 0.

See also

RangeBasedMasking

RangeBasedMasking()

static Image::Pointer mitk::MaskCleaningOperation::RangeBasedMasking ( Image::Pointer &  image, Image::Pointer &  mask, bool  lowerLimitOn = false, double  lowerLimit = 0, bool  upperLimitOn = false, double  upperLimit = 1  )

static

Remove mask voxels where the corresponding image intensity is outside a given range.

For each voxel in the mask, the corresponding intensity in the grey-scale image is checked against optional lower and upper thresholds. If the intensity falls outside the active threshold bounds, the mask voxel is set to 0.

Parameters

[in]	image	Grey-scale image providing the intensity values for threshold comparison.
[in]	mask	Original binary mask (unsigned short) to be filtered.
[in]	lowerLimitOn	If true, mask voxels covering intensities below lowerLimit are set to 0. Default: false.
[in]	lowerLimit	The lower intensity threshold. Only used when lowerLimitOn is true. Default: 0.
[in]	upperLimitOn	If true, mask voxels covering intensities above upperLimit are set to 0. Default: false.
[in]	upperLimit	The upper intensity threshold. Only used when upperLimitOn is true. Default: 1.

Returns

A new mask image with out-of-range voxels set to 0.

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The documentation for this class was generated from the following file:

• mitkMaskCleaningOperation.h