# MATLAB files for BM4D denoising - from Tampere with love, again MATLAB wrapper and MEX file for BM4D for stationary correlated noise (including white noise). BM4D is an algorithm for attenuation of additive spatially correlated stationary (aka colored) Gaussian noise for volumetric data. This package provides a MATLAB demo file, wrapper, and a BM4D MEX file. For denoising of images/multichannel data, see BM3D (available from https://www.cs.tut.fi/~foi/GCF-BM3D/#ref_software) These newer binaries (v4+) are designed only for dealing with additive Gaussian white or correlated noise. Special features like embedded handling of Rice noise and adaptive groupwise variance estimation are supported by the legacy binaries v3.2 at https://webpages.tuni.fi/foi/GCF-BM3D/ . This implementation is based on - Y. Mäkinen, L. Azzari, A. Foi, 2020, "Collaborative Filtering of Correlated Noise: Exact Transform-Domain Variance for Improved Shrinkage and Patch Matching", in IEEE Transactions on Image Processing, vol. 29, pp. 8339-8354. - M. Maggioni, V. Katkovnik, K. Egiazarian, A. Foi, 2013, "Nonlocal Transform-Domain Filter for Volumetric Data Denoising and Reconstruction", in IEEE Transactions on Image Processing, vol. 22, pp. 119-133. - Y. Mäkinen, S. Marchesini, A. Foi, 2022, "Ring Artifact and Poisson Noise Attenuation via Volumetric Multiscale Nonlocal Collaborative Filtering of Spatially Correlated Noise", in Journal of Synchrotron Radiation, vol. 29, pp. 829-842. The package contains the BM4D MEX file compiled for: - Windows (R2024a) - Linux (R2023b) - Mac OSX (R2018a): no longer maintained and will be removed from future releases. - macOS ARM (R2023b) The binaries are available for non-commercial use only. For details, see LICENSE. Authors: Ymir Mäkinen Lucio Azzari Alessandro Foi ============================================================ LICENSE ============================================================ By accessing this software you agree to the following terms. If you do not agree to the following terms, please note that you are not allowed to use this software. Copyright, author rights, trademarks and other intellectual property rights This software is protected by copyright, author rights and/or other intellectual property rights which are the property of Tampere University ("TAU"), its researchers, and/or third parties. Reproduction, modification, and use of the software (or any information incorporated thereto such as but not limited to reports, publications, codes, pictures, diagrams, video material) are hereby authorized provided that: (i) reproduction, use, and modification are for informational and having non-commercial scope only; and (ii) all original copyright notices in their entirety appear in any copies, reproduction, or modification of the software; and (iii) the software, or any reproduction or modification thereof, will not be copied or posted on any network computer or broadcast in any media without prior consent is obtained from TAU; and (iv) reference to the original authors is given whenever results, which arise from the use of the provided software or any modification of it, are made public. No other use of the software and of any information incorporated thereto is hereby authorized. In addition, be informed that some names are protected by trademarks which are the property of TAU, its researchers, and/or other third parties whether a specific mention in that respect is made or not. Disclaimers The software is provided for general information only and should not be relied upon or used as the basis for making any transactions of any kind whatsoever. The software are provided « AS IS » without warranty of any kind either expressed or implied including, without limitation, warranties of merchantability, fitness for a particular purpose or non infringement of intellectual property rights. TAU makes no representations or warranties as to the accuracy or completeness of any materials and information incorporated thereto and contained in this software. TAU makes no representations or warranties that this software (the materials and/or any information incorporated thereto) will be error-free, will be secure, and free of virus or other harmful components. The use of the software or of any information incorporated thereto, in whole or in part, is the sole responsibility of the user. TAU disclaims any liability for any damages whatsoever including without limitation direct, indirect, incidental and/or consequential damages resulting from access to and use of this software.