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This paper describes an intensity image filter for computing the variance of pixel values contained within a neighborhood centered at each input pixel. The output image contains the calculated variance at each input pixel location. Variance calculations can [...]

ItkImageFunctionImageFilter: A New Filter To Apply An itkImageFunction To Every Pixel In An itkImage
Published in The Insight Journal
Published in The Insight Journal
This document presents a new class to apply an itkImageFunction to every pixel in an itkImage. This functionality is almost identical to itkUnaryFunctorImageFilter, but it uses an itkImageFunction rather than an itk::Functor. As some functionalities in ITK [...]

This papers describes an image filter that counts the number of neighbors a pixel has storing that value at the pixel's image index. Functionality is provided to 1) adjust the neighborhood size, 2) count only those pixels within a specific value range, and 3) [...]

Thresholding is perhaps one of the most basic techniques in image processing. The Insight Toolkit (ITK) includes several threshold filters ranging from simple ones to Otsu based thresholding. Deep into the implementation of the Canny edge detection filter, [...]

Although phase data can take on any value, it is generally only possible to measure phase as a principle value, i.e., wrapped within the range (-pi,pi]. Determining the unwrapped phase from its principle value is a topic of considerable interest in magnetic [...]

This document presents a set of classes which implement a region growing algorithm whose criterion for growth is different than existing ITK region growing algorithms. The region is grown into the query pixel based only on the difference between the query [...]

Two Luis Miguel fans walk into a bar in Nagoya ---> (yada, yada, yada) ---> an ITK-implementation of a popular patch-based denoising filter
Published in The Insight Journal
Published in The Insight Journal
This document describes an ITK implementation of the adaptive patch-based
image denoising algorithm described in cite{Manjon:2010aa}. This offering consists
of the templated class itkPatchBasedDenoisingImageFilter interfaced through
the DenoiseImage program [...]

This document presents an implementation of Moore Neighbor Tracing - an algorithm to find an ordered outline of a blob or contour in an image.
An excellent tutorial on Moore Neighbor Tracing is provided [...]

A contribution to the Insight Toolkit intended to support the process of statistical
analysis in Computational Anatomy. The methods included here operate on open or closed triagulated surfaces (represented by a QuadEdgeMesh). The filter assigns basis [...]

This document describes a new remote module implemented for the Insight Toolkit ITK, itkTextureFeatures. This module contains two texture analysis filters that are used to compute feature maps of N-Dimensional images using two well-known texture analysis [...]

The contribution to VTK presented in this article is an extension to vtk::vtkDiscreteMarchingCubes to also create vtk::vtkPointData scalars containing the value of the adjacent voxel. These can be used to remove regions of the marching-cubes 1 mesh depending [...]

BinShrink: A multi-resolution filter with cache efficient averaging.
Published in The Insight Journal
Published in The Insight Journal
We present a new filter for the Insight Toolkit (ITK) for reducing the resolution of an image by an integer factor while averaging called BinShrink. This filter provides a new level of performance to ITK for reducing resolution and noise present in an image. [...]

Facet Analyser: ParaView plugin for automated facet detection and measurement of interplanar angles of tomographic objects
Published in The MIDAS Journal
Published in The MIDAS Journal
The presented ParaView plugin allows easy access to the algorithm described in Ref 1. It enables analysis of faceted objects that exhibit distortions in their digital representation, e.g. due to tomographic reconstruction artifacts.
The contributed [...]

An entropy based multi-thresholding method for semi-automatic segmentation of liver tumors
Published in The MIDAS Journal
Published in The MIDAS Journal
Liver cancer is the fifth most commonly diagnosed cancer and the third most common cause of death
from cancer worldwide. A precise analysis of the lesions would help in the staging of the tumor and
in the evaluation of the possible applicable therapies. In [...]
