Bias Field Corrected Fuzzy C-Means

Estimates the illumination artifact in 2D (color) and 3D CT and MRI and segments into classes.

Description

This function segments (clusters) an image into object classes, and estimates and corrects for slow varying illumination artifacts. Estimates and corrects for bias field in 3D MRI, streak artifacts in CT, and illumination artifacts in color photos.

It's an implementation of the paper of M.N. Ahmed et. al. "A Modified Fuzzy C-Means Algorithm for Bias Field estimation and Segmentation of MRI Data" 2002, IEEE Transactions on medical imaging.
Only difference is added Gaussian regularization to the bias-field, (disable when sigma is set to zero).

See the screenshot.

The code is both available as matlab code and as c-coded mex file for speed.

For a 2D image the mex-file segmentation takes a few seconds, for a 512x512x512 volume it takes up to 1900s

Compile the c-code, and try the examples in the help

Please report bugs, successes and other helpful comment.

• MATLAB release: MATLAB 7.9 (2009b)
• Other Files: BCFCM2D.c, ; BCFCM2D.m, ; BCFCM3D.c, ; BCFCM3D.m, ; flower.png, ; imgaussian.m, ; license.txt, ; test_biasfield_noise.png

[ciaiaia ccccccc]

D:\BIN\MEX.PL: Error: 'BCFCM2D.c' not found.
 
??? Error using ==> mex
Unable to complete successfully.

Error in ==> Untitled2 at 3
    mex BCFCM2D.c -v;

[Dirk-Jan Kroon]

*ciaiaia ccccccc
The error is very clear it cannot find the file, probably you executed the MEX command from a different folder ?

Otherwise try "mex -setup" to reset your compiler settings.

[ciaiaia ccccccc]

uhm in this folder D:\bin there are
mex.pl and BCFCM2D.c and many files [all files of this application *.m, *.c]
and mexutils.pm and mexsetup.pm ecc and many .bat for example [matlab]

why it doesnt find 'BCFCM2D.c' file? there is it in folder :/

Otherwise I try mex-setup but at the end there is the same the error