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Grayscale morphological attribute operations
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Morphological area attribute openings and closingscite{Cheng92,Vincent93a} are connected set operations that are able to remove parts of an image that meet certain criteria without changing the rest of the image. This article describes a number of classes [...]

Morphological Opening on a Graph
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This document presents an implementation of an algorithm to perform a morphological opening on a graph. The intent is to remove short branches in a graph while preserving the large scale structure. This implementation is based on the algorithm described in [...]

OpenCL accelerated GPU binary morphology image filters for ITK
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Binary morphological operations are fundamental tools in image processing but the processing time scales with the number of pixels thus making them expensive operations on the CPU for larger 3D datasets that typically appear in medical imaging. Since erosion [...]

MorphologicalGradientImageFilter
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Morphological gradients enhance the variation of pixel intensity in a given neighborhood.

MinimaImpositionImageFilter
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A filter to impose to the input image the minima defined in the marker image.

Improving features and performance of binary erode and dilate filters
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Binary erosion and dilation are the base filters of binary mathematical morphology. In ITK 2.4.1 verb$BinaryDilateImageFilter$ and verb$BinaryErodeImageFilter$ implement an efficient algorithm described in cite{Nikopoulos2000}. However, those filter lack [...]

Tophap by area
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The tophat transform is a well know and widely used transform based of morphological opening or closing. It is often used to remove the background in an image, where the background is defined as the zones which do not fit in the user provided [...]

Parallel algorithms for erosion and dilation of label images.
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It is sometimes useful to be able to apply binary morphological operations, such as erosions and dilations, to labelled images in a fashion that preserves the labels. This article introduces a specialised class implementing parallel methods described in beare [...]

Finding regional extrema - methods and performance
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Finding regional extrema of images is an important step in a number of morphological algorithms, such as some versions of the watershed transformfootnote{This work started because we were trying to compare different watershed algorithms}. Regional extrema [...]

Integration of Fuzzy Mathematical Morphology and Fuzzy Spatial Relationships into ITK
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The aim of this paper is to present the integration of new filters computing fuzzy mathematical morphology and spatial relationships into ITK and to share our experience with the Open source community. Our implementation architecture follows the essential [...]

Efficient implementation of kernel filtering
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Kernel based filtering is one of the fundamental tools of image analysis and processing. A number of approaches have been developed over the years that allow efficient implementation of such filters even when the kernel size is large. This article reviews [...]

Morphology with parabolic structuring elements
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Morphological erosion and dilation filters employ a structuring function, with flat structuring functions being the most common example. This article will use the term ``parabolic'', but much of the literature uses ``quadratic'' structuring functions are less [...]

Component tree: an efficient representation of grayscale connected components
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Connected component is a well known and very useful notion in binary case. As often in mathematical morphology, this notion can be extended to the grayscale case, and allow to perform lot of the useful transforms based on binary connected components in the [...]

4D Morphological segmentation and the MICCAI LV-segmentation grand challenge
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The goal of the Cardiac MR Left Ventricle Segmentation Challenge at MICCAI 2009 is to compare state-of-the-art LV segmentation methods. This goal is facilitated through an evaluation system and a database of cardiac cine MR images, as well as expert contours, [...]


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ISSN 2327-770X
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