### 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,...

### M-tortuosity-by-iterative-erosions (3D)

M-tortuosity-by-iterative-erosions for the characterization of 3D volumes: 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...

### M-tortuosity (3D)

Computation of the M-tortuosity estimator for the characterization of 3D volumes: 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...

### 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...

### Thickness analysis

Compute the thickness of the largest connected component of an image using distance functions and a watershed operator. As a result, this plugin provides a report in text format indicating the average, minimum, maximum and standard deviation of this thickness. Update 20210504 : analysis of the largest connected...

### Separation of binary objects

This plugin performs a separation of fusionned/linked binary objects with standard approch from mathematical morphology i.e. using operators such as opening, distance transform, h-maxima, and watershed. For more explanations, look at Serge Beucher (PSL Mines ParisTech, CMM) courses, and take opportunity to read his...

### Robust derivative of a signal

Compute robust derivative of a signal using self-adapting filtering. This plugins applies a filter on the initial data, compute the derivative, and can also applies a post filtering on the obtained derivative. The self-adapting filtering is based on the algorithm used on signal auto smoothing plugin.

### Histogram under mask

Compute the gray level histogram for the zones defined by a mask. The zones are directly defined by drawing on the image (use the help button of the plugin to know more). This plugin computes also gray levels histogram of the union of the zones.

### Robust tracking of an object of interest

Robust tracking of an object on a list of images. This plugin tracks an object of interest defined by a box on a list of images, and produces overlayed boxes or registrated images. It could be used in the case of noisy or very low contrasted images like TEM HR images. This plugin was used in the context of the ANR...

### Granulometry by morphological opening by disks

Morphological opening granulometry with increasing radius disks for binary images.

### 3D volume from images list

Create a 3D volume from images listed in a directory. Simply load one of the images of the directory. Images should be in BMP, JPEG or TIFF format. Images are taken in alphabetical order. The result is a 3D volume with 8 bits intensity. Update 20191118 : support for BMP and JPEG images format. Update 20190409 :...

### FACE : Fast mean Absolute difference with Confidence propagation for Extended depth of field

Bright field microscopes with low depth of field provide good magnification and image quality. However, samples generally have a thickness greater than the depth of field, thus being not entirely observable within the viewing distances intervals and preventing the creation of sharp images. It is possible to gradually...

### Batch processing

Do batch processing of all files of a directory without a single line of code.

### Extract profile from 2D image

Use graphical interface to extract horizontal of vertical profile. Move the line overlay on the image using the right mouse button. There are two modules: one for vertical profiles and one for horizontal profiles.

### Compute under mask

Compute the mean, the max, the sum and the standard deviation for the zones defined by a mask. The zones are defined by a binary image (intensity 0 for background). This plugin can be used to compute integration of peaks with 2D data.

### Drawing

Allows drawing over an image. Can be used to define a binary mask. It can also be used to modify an existing binary mask. Update 20190507 : adding the modification of an existing binary mask

### Read NMR 2D text file

Compute a NMR 2D image from a text file exported from Bruker TopSpin software.

### 3D histogram automatic segmentation

This plugin offers image segmentation algorithms for 3D volume using a global approach based on the histogram. Depending on the application and the type of image, several criteria are available to detect many objects of interest [Otsu, 1979] [Diday, 1971] [Dempster, 1987] or few objects [Kapur, 1985] [ Huang, 1995]. A...

### Mathematical morphology basic operations

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 or...

### Histogram automatic segmentation

This plugin offers image segmentation algorithms using a global approach based on the histogram. Depending on the application and the type of image, several criteria are available to detect many objects of interest [Otsu, 1979] [Diday, 1971] [Dempster, 1987] or few objects [Kapur, 1985] [ Huang, 1995]. A strategy to...