Fast 2D phase unwrapping implementation in MATLAB

Fast unwrapping 2D phase image using the algorithm given in:

M. A. Herraez, D. R. Burton, M. J. Lalor, and M. A. Gdeisat,
"Fast two-dimensional phase-unwrapping algorithm based on sorting by
reliability following a noncontinuous path", Applied Optics, Vol. 41, Issue 35, pp. 7437-7444 (2002).

If using this code for publication, please kindly cite the following:

• M. A. Herraez, D. R. Burton, M. J. Lalor, and M. A. Gdeisat, "Fast two-dimensional phase-unwrapping algorithm based on sorting by reliability following a noncontinuous path", Applied Optics, Vol. 41, Issue 35, pp. 7437-7444 (2002).
• M. F. Kasim, "Fast 2D phase unwrapping implementation in MATLAB", https://github.com/mfkasim91/unwrap_phase/ (2017).

Getting started

• To get started and see the demo, simply type test_unwrap_phase in MATLAB (make sure that the file is included in MATLAB search path)
• The function to use is unwrap_phase
• Examples of using the code is given in the test_unwrap_phase.m file

If this algorithm fails ...

Please try the unwrap_phase by scikit-image in Python. It has a better implementation.