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The viewer4d: Viewing 4D (3D plus time) images with v4dlib PDF Print
Article Index
The viewer4d: Viewing 4D (3D plus time) images with v4dlib
Invoking the program, opening images
Viewing a sequence of images
Studying a complex image
Managing annotations
Exporting views
Compiling the program
License, Download, Authors

Icon of the viewer4d projectThis web page aims to present a CBIA developed open-source SW called viewer4d, a light-weight yet versatile viewer of 4D scientific images.

The purpose of the program is indeed to inspect 2D, 3D (stack of 2D images), 4D (usually a time-lapse sequence, or collection of results of image processing parametric study, of 3D images) images. On one hand, it allows to overview image data as a whole with such features as

  • OpenGL volumetric rendering,
  • various voxel intensity mapping regimes (incl. histogram stretches, manually adjusted levels, thresholding, and colour mappings),
  • automatic annotations (user adjustable scale bar, time bar),
  • automatic browsing (and looping) through the image sequence,
  • on-the-fly subsampling and overlaying,
  • exporting the views into image files for publication purposes.

On the other hand, it allows to zoom in and inspect values of individual voxels and their neighborhood.

The pixel values can be anything from 8bit and 16bit integers, real and complex values, or RGB and RGB16 colours. It is able to read single JPEG, TIF, PNG, ICS (Image Cytometry Standard), HDF5 images. To obtain broader support for file firmats, it is possible to attach the favourite Bioformats boundle to the program. The viewer4d can read a sequence of images across multiple folders and, of course, organize the order of images with our re-designed powerful Open dialog beforehand.

The program viewer4d is freely available "as is" under the GNU LGPL license, with open source code, also based solely on other open source packages. The program is an extension of our proven viewer3d .

The viewer4d was developed and tested on recent Windows and Linux platforms, for which we also provide binary packages.


The program is developed for scientists by scientists with the aim to address our daily image inspecting activities.


Copyright belongs to Centre for Biomedical Image Analysis, Faculty of Informatics, Masaryk University.

Written by Vladimír Ulman   
Last Updated ( Friday, 23 October 2015 )
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