Debian Science Project
Image analysis
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Debian Science Image analysis packages

Official Debian packages with high relevance

Графічний інтерфейс користувача для Particle Image Velocimetry
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Gpiv — програма з графічним інтерфейсом, що використовує бібліотеки GTK/GNOME для Particle Image Velocimetry (PIV). Ця програма надає швидкий огляд загальних параметрів процесів та дозволяє легко їх міняти, запускати процеси по одному або в черзі, візуалізувати й відображати результати. Процеси, які можуть бути викликані Gpiv:

Обробка образів: звичайний процес, який може знадобитися при PIV-зондуванні.

Зондування образу для оцінки зсуву.

Перевірка даних: тестування на випадання, ефект блокуючих піків та градієнтів швидкості, що перевищують заданий діапазон.

Післяопераційна обробка даних: маніпулювання даними, просторове і тимчасове масштабування для отримання поля швидкості з PIV даних, розрахунок просторового усереднення, завихрень й спотворень.

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command line programs for Particle Image Velocimetry
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A collection of programs for images that are generated during a Particle Image Velocimetry (PIV) experiment. This is a technique to obtain the velocity field of a fluid flow quantitatively and is performed by tracking tracer particles that have been seeded to a fluid. The technique is also applied for observing deformations at surfaces of (solid) bodies. The package contains:

  • an image processing program for typical filtering and manipulation routines that may be convenient for PIV.
  • an image interrogation program resulting into estimators of particle image displacements.
  • validation programs to test on outliers, peak-locking effect and velocity gradients.
  • post-processing programs for data manipulation (flipping, rotation etc), spatial and time scaling, calculation of spatial averages and derivative quantities from the PIV data, like vorticity and strain.
  • miscellaneous programs and scripts to perform image format conversion, batch-processing, pipeline processing (image evaluation, validation and post-processing at once), calculation of time averages from a series of PIV data sets, data-visualization and data-manipulation.

All programs start with gpiv_.

This package contains all files used by gpivtools and gpivtools-mpi, like the man pages.

Scanning Probe Microscopy visualization and analysis tool
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Gwyddion is a modular program for Scanning Probe Microscopy (SPM) data visualization and analysis. It is primarily intended for analysis of height field data obtained by microscopy techniques like

  • Atomic Force Microscopy (AFM),
  • Magnetic Force Microscopy (MFM),
  • Scanning Tunneling Microscopy (STM),
  • Near-field Scanning Optical Microscopy (SNOM or NSOM) and others. However, it can be used for arbitrary height field and image analysis.

This package contains the main application and its modules. It also contains a GNOME (and Xfce) thumbnailer which creates previews for all file types known to Gwyddion.

Please cite: David Nečas and Petr Klapetek: Gwyddion: an open-source software for SPM data analysis. (eprint) Central European Journal of Physics 10(1):181-188 (2012)
Registry entries: SciCrunch 
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C++ library for computer vision, image, and video processing - tools
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libCVD is a very portable and high performance C++ library for computer vision, image, and video processing. The emphasis is on providing simple and efficient image and video handling and high quality implementations of common low-level image processing function. The library is designed in a loosely-coupled manner, so that parts can be used easily in isolation if the whole library is not required. The video grabbing module provides a simple, uniform interface for videos from a variety of sources (live and recorded) and allows easy access to the raw pixel data. Likewise, the image loading/saving module provides simple, uniform interfaces for loading and saving images from bitmaps to 64 bit per channel RGBA images. The image processing routines can be applied easily to images and video, and accelerated versions exist for platforms supporting SSE.

This package contains tools and utilities using libcvd.

Lightweight Image Registration
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Command line application for image registration. Automatically finds an optimal alignment of two input images, that makes both most similar to each other. Outputs the rigid transformation parameters (shift and rotation) and/or the registered (transformed/aligned) image.

Fast algorithm based on analytical derivative based optimization with a multilevel approach and without expensive sparse-matrices.

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Tools to process and visualize scientific data and images - command line tools
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Teem is a coordinated group of libraries for representing, processing, and visualizing scientific raster data. Teem includes command-line tools that permit the library functions to be quickly applied to files and streams, without having to write any code. The most important and useful libraries in Teem are:

  • Nrrd (and the unu command-line tool on top of it) supports a range of operations for transforming N-dimensional raster data (resample, crop, slice, project, histogram, etc.), as well as the NRRD file format for storing arrays and their meta-information.
  • Gage: fast convolution-based measurements at arbitrary point locations in volume datasets (scalar, vector, tensor, etc.)
  • Mite: a multi-threaded ray-casting volume render with transfer functions based on any quantity Gage can measure
  • Ten: for estimating, processing, and visualizing diffusion tensor fields, including fiber tractography methods.

This package contains some simple command-line tools which provide fast and easy access to the functionality in the various libraries.

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