### 3D surface area

3D surface area measurement of object(s) inside a volume. Each connected components can be consider as one object, or the entire volume as only one object. The calculation is from [Lindblad, 2005] : the estimation is performed with a “marching cube” approach using local weights. Two kind of local weights are...

### Negative

Compute the negative of an 8-bit grayscale image or volume.

### Extract ROI from binary mask

Extract the region of interest (ROI) of an image using a binary image (supported formats are .bmp, .png, .jpg, .tiff, and .fda). The region of interest is extracted within a new image of the same size as the original image. Outside the region of interest, the intensity values are zero. Zero intensity values from the...

### SAXS intensity from projection

Small Angle X-ray Scattering intensity computed from projections of a 3D volume. Projections should be of size of power of two. The computed diagram is proportional to the square of the Fourier transform modulus of the projection of the object along one axis. The calculation is prone to strong finite size effects....

### Projection

Orthogonal projection of a volume along x-axis, y-axis, or z-axis. This plugin can compute also opaque projection.

### Extraction of porosity

Extraction of porosity from binary image taking into account external roughness. This plugin operates with a morphological closing by a disc whose radius can be automatically estimated, followed by a geodesic morphological opening. This method is defined and used in [Moreaud et al. 2008].

### Extract patches from image

Extract patches from image using graphical interface.

### Rugosity analysis

Rugosity / texture analysis by H-maxima and area of influences on zones of interest drawn over the image. Computation of local maxima or minima, then area of influence, and for each area of influence, extraction of the surface area, minimum, and maximum intensity values. The zones of interest are directly defined by...

### Homogeneization Dielectric Permittivity FFT scheme

An efficient method to solve the problem of homogenization of physical properties of heterogeneous media, such as dielectric permittivity, is the implementation of numerical solutions, before estimating the effective properties by spatial average of the solution. The input data is a 3D binary volume or a 2D binary...

### Get plane

Extract cut plane(s) of a volume. Update 20200423 : extraction of all cut planes along one axis.

### Histogram

Compute the histogram of an image.

### ARFBF Morphological Analysis

In the case of active phases observable in the form of stacked sheets, the classic strategy is to segment these sheets individually and characterize their length or curvature [Celse, 2008], which may related to actibity [Gandubert, 2006]. Since the images are quite noisy at this level of resolution, this type of...

### Mathematical morphology binary geodesic operations 2D and 3D

Mathematical morphology has been introduced by Matheron and Serra [Serra, 1982] in the late 1960's. It defines among others, two basic operators: dilation and erosion. These tools and their combinations are powerful and widespread for filtering and image analysis. For instance, operations such as opening, closing are...

### Workshop GdR NanOperando 2019

A workshop dedicating to the potential of plug im! platform to extract quantitative information from data from in situ experiments, therefore "dynamic" by nature! Includes a package with a set of plug im! modules, working data files, and pdf slides to guide users.

### Luminosity drift correction by morphological approach

Luminosity drift correction by TopHat operation combined with smoothing filter and / or LIP substraction.

### Criterion opening

Opening by criterion, usually referred to as attribute opening (Breen & Jones, 1996; Serra, 1988; Walter, 2003; Salembier et al., 1998) is a class of more general connected filters (Salembier&Wilkinson, 2009). In binary context, this operation is a filter on the set of the connected components (CC) based on criterion...

### Image sequence analysis of binary objects

Calculates the morphological analysis and movement of binary objects in an image sequence. Each object is individually tracked over the entire image sequence. The input data must be a 3D volume, each plane on the Z axis corresponding to an image of the image sequence. Morphological characterization : surface area, ...

### SAXS for Boolean models of spheres

This plugin computes the scattering intensity from the analytical covariance of multiscale models built from union and intersection of Boolean models of spheres with Gamma or lognormal radius distributions. Another numerical approach, using projections of realisations for any kind of models, can be find in Sorbier et...

### CPE Lyon Morphological Random Models : introduction, course, 2019

CPE Lyon Morphological Random Models : introduction, course, 2019

### Extraction of connected components in individual files

Extraction and saving of connected components in individual images, in a directory of your convenience. Update 20190909 : fixed a bug related to saving individual images. Update 20191004 : fixed a bug related to saving individual images.

### Closing ends

Considering edges of connected components as ends, each end pixel is linked to another end pixels if the two pixels belong to different connected components, and if the distance between the two pixels is less than a threshold. This operation can be useful in the case of disconnected filamentous objects and it is used...

### Skeleton by thinning

This plugin performs a skeleton computation by thinning algorithm. Topological thinning consists in gradually removing the points of the contour of the shape, while preserving its topological characteristics. If you use this plugin, please cite : Y.Y. Zhang ; P.S.P. Wang, A modified parallel thinning algorithm,...

### Volume rendering for 3D data

This plugin provides a visualization with volume rendering. Regardless on the data size, the selection of the view orientation is made using a pop-up window that allows real-time control of the orientation. Typical applications are visualizations of 3D data from tomography or electron tomography.

### Surface rendering of 3D volume

This plugin provides a visualization of a volume with manual thresholding and several 3D effects. Regardless on the volume size, the selection of the view orientation is made using a pop-up window that allows real-time control of the volume position. Typical applications are visualizations of 3D data from tomography,...

### Surface rendering for image

Considering grey levels of an image as a relief, this plugin provides surface visualization with several 3D effects. Orientation of the observation is done using a real-time preview with a pop-up window. Typical applications are the observation of 3D stereo reconstructions of visualization of NMR or GCGC 2D datas.

### M-tortuosity-by-iterative-erosions

Computation of the M-tortuosity estimator of the microstructure, as seen by a spherical particle of given size. In addition to keeping the properties of the M-tortuosity, this descriptor is linked to the notion of constrictivity, characterizing the bottleneck effect. More details can be found using the links below.

### M-tortuosity

Computation of the M-tortuosity estimator: a scalable topological descriptor providing a 3D map of mean tortuosities, a set of M-coefficients, of which the histogram is meaningful, and a final scalar value, the M-scalar, assessing the geometric tortuosity of the overall microstructure. This descirptor is based on a...

### Local orientation estimation

Fast and robust method to estimate local orientations from the covariance matrix of the gradient. The estimation of the local orientation requires to define a size of neighbourhood around each pixel that contain several oriented objects. If you use this plugin, please cite : D. Jeulin, M. Moreaud. Segmentation of...

### Flowing bilateral filter

The bilateral filter plays a key role in image processing applications due to its intuitive parameterization and its high quality filter result, smoothing homogeneous regions while preserving the edges of the objects. Considering the image as a topological relief, seeing pixel intensities as peaks and valleys, we...

### Stereo reconstruction with Top-Down Segmented Regression

TDSR (Top-Down Segmented Regression) provides a stereo reconstruction method able to estimate the topography from SEM images. Standard stereo methods fail to evaluate adequate 3D reconstructions because of the homogeneous surface of these samples. The main approach of TDSR is to combine existing stereo methods with...