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SymFD is a toolbox for the detection and characterization of edges, ridges, and blobs in 2D images.

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SymFD

Symmetric Molecule-Based Feature Detector (SymFD) v 1.1

Written by Rafael Reisenhofer (University of Vienna), 2018 Published under the MIT license

If you use this toolbox in your research, please cite the following paper:

  • R. Reisenhofer, and E. J. King. "Edge, Ridge, and Blob Detection with Symmetric Molecules". (PDF) (Supp. Material)
    To appear in SIAM Journal on Imaging Sciences.

How to get started

  1. Add all folders and subfolders to your MATLAB path
  2. Try to run SFDcompileMexFiles to make sure that all necessary .mex-files exist
  3. Run SFDGUI to open the GUI or run any of the examples in the folder 'Examples'

Contact: reisenhofer@uni-bremen.de

Requirements

SFDexportMap requires the export_fig toolbox written by Yair Altman. The toolbox can be obtained from mathworks at https://de.mathworks.com/matlabcentral/fileexchange/23629-export_fig

Acknowledgements

The files K05_CH_full.png, K05_OH_full.png, A0.png, B0.png, and A02_test.avi were kindly provided by Johannes Kiefer.

The files churchandcapitol.bmp, dancers.bmp, monarch.bmp, and studentsculpture.bmp, are part of the LIVE image quality assessment databse:

H. R. Sheikh, Z. Wang, L. Cormack and A. C. Bovik, "LIVE Image Quality Assessment Database Release 2", http://live.ece.utexas.edu/research/quality.

The file i19.bmp is part of the Tampere Image Database (TID) 2008:

N. Ponomarenko, V. Lukin, A. Zelensky, K. Egiazarian, M. Carli, F. Battisti, "TID2008 - A Database for Evaluation of Full-Reference Visual Quality Assessment Metrics", Advances of Modern Radioelectronics, Vol. 10, pp. 30-45, 2009.

User Guide

A user guide is available in the repository.

Examples

Example scripts are included in the examples folder within the repository.

Input

Edge Detection - Raw Edge Measure

Edge Detection - Tangent Directions

Edge Detection - Curvature

Ridge Detection - Raw Ridge Measure

Ridge Detection - Tangent Directions

Ridge Detection - Widths

Blob Detection

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SymFD is a toolbox for the detection and characterization of edges, ridges, and blobs in 2D images.

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