Overview
Sefexa is a free tool for:
- Semi-automatic image segmentation. Segmentation is the process of splitting an image into two parts, e.g. objects of interest (bacteria, fruits, etc.) and the background. The application allows you to automatically segment an image and modify the segmentation manually.
- Analysis of images. Statistics like number of segmented objects or their sizes are available, together with export into Excel.
- Creation of ground truth. Ground truth data can be used for development and testing of new segmentation algorithms.
Sefexa requires Windows 7 or later. The application is free of charge for any non-commercional purposes. If you use Sefexa (directly or indirectly) in your publication, then you are asked to cite this website. See full license for more details.
Any questions, comments or suggestions should be sent to . See author's personal website or LinkedIn profile for more information about the creator.
See manual for more details about the software.
News
- 4 June 2023: Zooming improved.
- 22 May 2022: Zooming added.
- 22 October 2021: Installation enhancement.
- 18 Dec 2020: Free license extension.
- 12 Dec 2018: Free license extension.
- 22 Oct 2017: Export to .xlsx fixed to work with the latest Excel.
- 23 Apr 2017: Free license extension.
- 14 Sep 2015: Improved interactive segmentation (discretization artifacts removed).
- 24 May 2015: Interactive automatic segmentation, bounding box added to statistics.
- 28 Nov 2014: Improved segmentation, faster computation of statistics.
- 16 Aug 2014: Possibility to segment parts of image as foreground or background, unlimited number of segmentation models.
- 11 Jan 2014: First version released.