fdlibmex --- fast and simple face detection

An efficient and easy-to-use mex library for detecting frontal faces in images

Description

fdlibmex is a very simple face detection library for matlab. No toolboxes are required. The library consists of a single mex file with a single function that takes an image as input and outputs the locations of the frontal faces in the image.

The zip file includes mex files for the 32bit Windows, Linux and Mac platforms supported by Matlab, and an example script that illustrates the usage of the library.

• MATLAB release: MATLAB 7.6 (R2008a)
• Other Files: pcwin/fdlibmex.dll, ; fdlibmex_demo.m, ; judybats.jpg, ; glnx86/fdlibmex.mexglx, ; maci/fdlibmex.mexmaci

[Sebastien PARIS]

Why don't you offer the source code ? or indicate any references ?.

[Wolf Kienzle]

The library implements a new algorithm (i.e. not Viola/Jones or the like) that has not been published yet. That's why there are no references, sorry.

[Peter Gehler]

Worked out of the box with good results

[Jordi Palacin]

Very nice and fast.

[Help the Noob]

HI
I am very curious of me but and want to
try out this stuff...
but do i need Mathworks Matlab R2008a to make this work?

[Angela]

Hi Wolf,
 
Nice work on the face detector, seems to work well! Two questions though: (1) Is there any way gain access to parameters to adjust for precision and (2) are there any scores / confidences attached to each face detection?

Thanks,
Angela

[Wolf Kienzle]

hi angela,

there is an optional sensitivity parameter, you just call pos = fdlibmex(img, threshold). threshold makes most sense around -10..10.

unfortunately, there are no scores :( however, you can get an idea of the confidence by running the detector again with a higher threshold and checking which detections remain.

good luck!
-wolf

[sri hari bhupala haribhakta]

Dear Wolf,

is there any way to detect eyes, nose and lips using this code?

regards,
bhupala

[James C]

 

[James C]

Hi Wolf,

Great program, its reliable and quick. I was wondering if you know when you are going to publish a journal? Also is you algorithm based on a particular type of face detection (e.g. active shape modeling or image integrals...)

Cheers
James

[Wolf Kienzle]

hi!

bhupala: the library cannot detect eyes and nose directly. but the face detection result should be a good starting point for where to look for eyes, nose, etc.

james: thanks! the algorithm uses a cascaded classifier, however, unlike viola/jones, it does not use integral images or haar wavelets. i hope i will manage to write up something soon. when that happens, i'll definitely post a link in here. :)

happy holidays!

-wolf

[Gerardo Rosiles]

Hi,

Great work. Thanks for posting it. Are you using still using the Rank Deficient Faces algorithm? If this is another algorithm can you provide a reference at this point?

Thanks,

Gerardo

[Gerardo Rosiles]

Sorry, I did not read all the comments above. Are there any updates on the publlication and will it be protected by a patent?

[Hanaa]

 Hi all!
 
I'm doing my final year project on 'Image Processing Methods for facial recognition using Matlab'. I've got Visual Studio 2005 background but never used MatLab before. I've just started on with research, video tutorials and reading.
 
Can anyone please help me with a guide, where can I start this from? Does this face detection code helps?
 
Your help would be very much appreciated! :))

[PEDRO GARCIA]

It's fast to find a face with this code. The fastest code I have found on the web.

Could you provide any estimation about when the publication will be available?

Thanks,

[Zhe ‹]

very nice work, it is so fast. how can i get more accuracy result from this demo. thanks

[Daniel N]

good!

[ddt99999 Tong]

Is it possible to have mex files for 64bit Windows? Thanks a lot..

[pin pin]

heloo... how to use this using visual foxpro or visual basic?
how to declare it?
thanks

[Janayna]

Very nice work. What database did you use? I work with face recognition I need help to find a large number of train images.

Thanks

[Alfian Abdul Halin]

Hi Wolf :)

I was trying to use your code... but it didn't work for any of my test images. I am working with football (soccer) videos.. and I tested on some frames (640X480)...

Image quality is quite ok (not excellent). All are in JPEG extension (not JPG)... but no errors were given... I had to add extra code to change from RGB to Grayscale tho.

Do you know why this is happening? I was expecting it to work because of the many good reviews ure getting. Anyway... I still believe it could work. Maybe I need to add some things here and there? thankx

[Wolf Kienzle]

Hi Alfian,

if you don't get an error message, then everything should be working OK. If not, here's a few things you may want to check: Have you tested it with the example image I provided? Are the faces in your images large enough (about 25x25 pixels)? Are they somewhat evenly illuminated and frontal (not rotated, no side views)? Have you tried cranking up the detection threshold?

Hope that helps!

[Vitomir Struc]

Great job.

[Bhuvan Goradia]

I tried to run the demo file but got an error "Undefined function or variable fdlibmex"
Do we need to load the dll library and if yes how to do this as the load library function requires a header which is no provided.
Please help.