MATLAB Central Newsreader - facial features extraction

facial features extraction

ouzizo@gmail.com — Fri, 15 May 2009 22:39:45 -0400

guys i am doing a project on a face gender classification, one phase
of the project is detection some features in the face. I already have
the co-ordinates of the two eyes so i donot have to apply face
detection. please can any body help me to find a way to detect
features in the face such as two tips of the mouth, nose..etc???
PLEASE HELP

Re: facial features extraction

ouzizo@gmail.com — Fri, 15 May 2009 22:42:48 -0400

guys i forgot to note that i am using matlab for the project so please
i want to know the method or whatever it is using matlab.
thanks in advance

Re: facial features extraction

Nasser Abbasi — Fri, 15 May 2009 23:12:03 -0400

<ouzizo@gmail.com> wrote in message
news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
> guys i forgot to note that i am using matlab for the project so please
> i want to know the method or whatever it is using matlab.
> thanks in advance

It sounds like you need to look at Principal components analysis ?

doc princomp

google matlab Principal components analysis you'll find source code and web
pages on this

--Nasser

Re: facial features extraction

omar — Fri, 15 May 2009 23:28:02 -0400

"Nasser Abbasi" <nma@12000.org> wrote in message <aFmPl.15718$jZ1.2434@flpi144.ffdc.sbc.com>...
>
> <ouzizo@gmail.com> wrote in message
> news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
> > guys i forgot to note that i am using matlab for the project so please
> > i want to know the method or whatever it is using matlab.
> > thanks in advance
>
> It sounds like you need to look at Principal components analysis ?
>
> doc princomp
>
> google matlab Principal components analysis you'll find source code and web
> pages on this
>
> --Nasser
>

i googled matlab Principal components analysis and i didnt know what has this to do with face feature extraction. i have an image and i want to extract some features from the image.

Re: facial features extraction

Nasser Abbasi — Fri, 15 May 2009 23:36:56 -0400

"omar " <ouzizo@gmail.com> wrote in message
news:guktq2$jf6$1@fred.mathworks.com...
> "Nasser Abbasi" <nma@12000.org> wrote in message
> <aFmPl.15718$jZ1.2434@flpi144.ffdc.sbc.com>...
>>
>> <ouzizo@gmail.com> wrote in message
>> news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
>> > guys i forgot to note that i am using matlab for the project so please
>> > i want to know the method or whatever it is using matlab.
>> > thanks in advance
>>
>> It sounds like you need to look at Principal components analysis ?
>>
>> doc princomp
>>
>> google matlab Principal components analysis you'll find source code and
>> web
>> pages on this
>>
>> --Nasser
>>
>

> i googled matlab Principal components analysis and i didnt know what has
> this to do with face feature extraction. i have an image and i want to
> extract some features from the image.

Well, The SECOND link shown under the above search is page full of matlab
code for face feature extraction:

http://www.cs.ait.ac.th/~mdailey/matlab/

If you just have ONE face, then this might not apply to your problem.

PCA is used if one has many images, and want to extract the most common or
prominant features of all the faces.

It sounds then may be you need to apply edge detection or something similar.

good luck

--Nasser

Re: facial features extraction

Radhika — Sun, 07 Jun 2009 19:59:02 -0400

Thanks Chris. I am trying to do something similar. I need extracted features for analysis in a database. However until now most of the algorithms I have tried have given less than satisfatory results. Do you have suggestions on how I can extract and segment just the eyes and lips?

Thanks
radhika

"Nasser Abbasi" <nma@12000.org> wrote in message <z0nPl.15719$jZ1.1919@flpi144.ffdc.sbc.com>...
>
> "omar " <ouzizo@gmail.com> wrote in message
> news:guktq2$jf6$1@fred.mathworks.com...
> > "Nasser Abbasi" <nma@12000.org> wrote in message
> > <aFmPl.15718$jZ1.2434@flpi144.ffdc.sbc.com>...
> >>
> >> <ouzizo@gmail.com> wrote in message
> >> news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
> >> > guys i forgot to note that i am using matlab for the project so please
> >> > i want to know the method or whatever it is using matlab.
> >> > thanks in advance
> >>
> >> It sounds like you need to look at Principal components analysis ?
> >>
> >> doc princomp
> >>
> >> google matlab Principal components analysis you'll find source code and
> >> web
> >> pages on this
> >>
> >> --Nasser
> >>
> >
>
> > i googled matlab Principal components analysis and i didnt know what has
> > this to do with face feature extraction. i have an image and i want to
> > extract some features from the image.
>
> Well, The SECOND link shown under the above search is page full of matlab
> code for face feature extraction:
>
> http://www.cs.ait.ac.th/~mdailey/matlab/
>
> If you just have ONE face, then this might not apply to your problem.
>
> PCA is used if one has many images, and want to extract the most common or
> prominant features of all the faces.
>
> It sounds then may be you need to apply edge detection or something similar.
>
> good luck
>
> --Nasser
>

Re: facial features extraction

Saiful lufias — Wed, 24 Feb 2010 02:44:06 -0500

"Radhika " <rtibrewal@gmail.com> wrote in message <h0h666$p98$1@fred.mathworks.com>...
> Thanks Chris. I am trying to do something similar. I need extracted features for analysis in a database. However until now most of the algorithms I have tried have given less than satisfatory results. Do you have suggestions on how I can extract and segment just the eyes and lips?
>
> Thanks
> radhika
>
> "Nasser Abbasi" <nma@12000.org> wrote in message <z0nPl.15719$jZ1.1919@flpi144.ffdc.sbc.com>...
> >
> > "omar " <ouzizo@gmail.com> wrote in message
> > news:guktq2$jf6$1@fred.mathworks.com...
> > > "Nasser Abbasi" <nma@12000.org> wrote in message
> > > <aFmPl.15718$jZ1.2434@flpi144.ffdc.sbc.com>...
> > >>
> > >> <ouzizo@gmail.com> wrote in message
> > >> news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
> > >> > guys i forgot to note that i am using matlab for the project so please
> > >> > i want to know the method or whatever it is using matlab.
> > >> > thanks in advance
> > >>
> > >> It sounds like you need to look at Principal components analysis ?
> > >>
> > >> doc princomp
> > >>
> > >> google matlab Principal components analysis you'll find source code and
> > >> web
> > >> pages on this
> > >>
> > >> --Nasser
> > >>
> > >
> >
> > > i googled matlab Principal components analysis and i didnt know what has
> > > this to do with face feature extraction. i have an image and i want to
> > > extract some features from the image.
> >
> > Well, The SECOND link shown under the above search is page full of matlab
> > code for face feature extraction:
> >
> > http://www.cs.ait.ac.th/~mdailey/matlab/
> >
> > If you just have ONE face, then this might not apply to your problem.
> >
> > PCA is used if one has many images, and want to extract the most common or
> > prominant features of all the faces.
> >
> > It sounds then may be you need to apply edge detection or something similar.
> >
> > good luck

beside PCA got any other method that suitable to detect the feature of face in image that got many face???any link of tutorial about that pls???

Re: facial features extraction

hira — Thu, 25 Feb 2010 10:38:04 -0500

"Saiful lufias" <pedang_21@yahoo.com> wrote in message <hm23pm$nnn$1@fred.mathworks.com>...
> "Radhika " <rtibrewal@gmail.com> wrote in message <h0h666$p98$1@fred.mathworks.com>...
> > Thanks Chris. I am trying to do something similar. I need extracted features for analysis in a database. However until now most of the algorithms I have tried have given less than satisfatory results. Do you have suggestions on how I can extract and segment just the eyes and lips?
> >
> > Thanks
> > radhika
> >
> > "Nasser Abbasi" <nma@12000.org> wrote in message <z0nPl.15719$jZ1.1919@flpi144.ffdc.sbc.com>...
> > >
> > > "omar " <ouzizo@gmail.com> wrote in message
> > > news:guktq2$jf6$1@fred.mathworks.com...
> > > > "Nasser Abbasi" <nma@12000.org> wrote in message
> > > > <aFmPl.15718$jZ1.2434@flpi144.ffdc.sbc.com>...
> > > >>
> > > >> <ouzizo@gmail.com> wrote in message
> > > >> news:ac50e2c9-af38-429f-b802-b1dce77aec25@v4g2000vba.googlegroups.com...
> > > >> > guys i forgot to note that i am using matlab for the project so please
> > > >> > i want to know the method or whatever it is using matlab.
> > > >> > thanks in advance
> > > >>
> > > >> It sounds like you need to look at Principal components analysis ?
> > > >>
> > > >> doc princomp
> > > >>
> > > >> google matlab Principal components analysis you'll find source code and
> > > >> web
> > > >> pages on this
> > > >>
> > > >> --Nasser
> > > >>
> > > >
> > >
> > > > i googled matlab Principal components analysis and i didnt know what has
> > > > this to do with face feature extraction. i have an image and i want to
> > > > extract some features from the image.
> > >
> > > Well, The SECOND link shown under the above search is page full of matlab
> > > code for face feature extraction:
> > >
> > > http://www.cs.ait.ac.th/~mdailey/matlab/
> > >
> > > If you just have ONE face, then this might not apply to your problem.
> > >
> > > PCA is used if one has many images, and want to extract the most common or
> > > prominant features of all the faces.
> > >
> > > It sounds then may be you need to apply edge detection or something similar.
> > >
> > > good luck
>
> beside PCA got any other method that suitable to detect the feature of face in image that got many face???any link of tutorial about that pls???

hi;
i also need to get the eye coordinates and the mouth corners. please help me how i could perform it in matlab. if nay one have some code for it or any link please help.

Re: facial features extraction

veena — Thu, 24 Jun 2010 06:42:24 -0400

ouzizo@gmail.com wrote in message <ffb3c486-32aa-45dc-8157-1c2b27e8b991@s31g2000vbp.googlegroups.com>...
> guys i am doing a project on a face gender classification, one phase
> of the project is detection some features in the face. I already have
> the co-ordinates of the two eyes so i donot have to apply face
> detection. please can any body help me to find a way to detect
> features in the face such as two tips of the mouth, nose..etc???
> PLEASE HELP

hi,

i hope ur problem get solved,
i am also working on finding the face fetaures, but not able to get the solution.
Please guide me to find out the coordinates of eyes, nose tip and corners of lip.

If possible, then please provide me your code too.

thanks in advance,

veena