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Min/Max filter

12 Jul 2009 (Updated 26 Sep 2009)

Multidimensional non-linear min/max filtering

File Information
Description	The filter computes the minima and/or maxima of an array over sliding window with a given size. Multidimensional array is fully supported: running filter in 1D, 2D filter for image processing applications (erosion/dilatation), 3D and more. This package has been implemented with a special care on the running speed: the MEX engine uses an algorithms that requires no more than three (3) comparisons per element and per dimension in all configurations. All numerical and logical class arrays are supported. Contributor (beside author) is Vaclav Potesil
MATLAB release	MATLAB 7.8 (R2009a)
Other requirements	MEX correctly setup NO image processing is required Download a tiff file for Lena's demo
Zip File Content
Other Files	license.txt, MinMaxFilterFolder/benchminmax.m, MinMaxFilterFolder/Contents.txt, MinMaxFilterFolder/demolena.m, MinMaxFilterFolder/KramerBruckner.m, MinMaxFilterFolder/lemire_engine.c, MinMaxFilterFolder/lemire_engine.m, MinMaxFilterFolder/lemire_nd_engine.c, MinMaxFilterFolder/lemire_nd_maxengine.c, MinMaxFilterFolder/lemire_nd_maxengine.m, MinMaxFilterFolder/lemire_nd_minengine.c, MinMaxFilterFolder/lemire_nd_minengine.m, MinMaxFilterFolder/minmaxfilt.m, MinMaxFilterFolder/minmaxfilt1.m, MinMaxFilterFolder/minmaxfilter_install.m, MinMaxFilterFolder/slowminmaxfilt_algo.m, MinMaxFilterFolder/testminmaxfilt.m, MinMaxFilterFolder/vanherk.m

Tags for This File
Everyone's Tags	dilatation(2), erosion, filtering, image processing, kramerbruckner, minmax filter, pattern recognition, running max, running min
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Updates
13 Jul 2009	Correct a bug that causes crash on 64-bit plateform Additional memory check in one MEX function Friendly matlab gateway for 1D min/max filtering
20 Sep 2009	New feature: Possibly to output corresponding indexes arrays (suggested by a user) + slight improvement of the Lemire's engine.
21 Sep 2009	Correct BUG of cropping the index array when shape is SAME
21 Sep 2009	Acknowledgment
22 Sep 2009	Cleaner algorithm for same shape filtering
26 Sep 2009	description

Tag Activity for this File
Tag	Applied By	Date/Time
image processing	Bruno Luong	13 Jul 2009 12:15:27
minmax filter	Bruno Luong	13 Jul 2009 12:15:27
filtering	Bruno Luong	13 Jul 2009 12:15:27
kramerbruckner	Bruno Luong	13 Jul 2009 12:15:27
erosion	Bruno Luong	13 Jul 2009 12:15:27
running min	Bruno Luong	13 Jul 2009 12:15:27
pattern recognition	Bruno Luong	13 Jul 2009 12:15:27
running max	Bruno Luong	13 Jul 2009 12:15:27
dilatation	Bruno Luong	13 Jul 2009 12:15:27
dilatation	jurmucioz Tsiou	13 Oct 2009 18:32:56

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