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dondora
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 Posted: Wed Nov 12, 2008 3:13 am Post subject: preprocessing prior to excute PCA |
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Hi everyone.
I realized some kinds of preprocess should be used before doing PCA.
For example, if a face is rotated by some angle, the face must be
rotated by that angle so as to all faces are parallel to a
predetermined vertical line.
And I reckon that eyes of all the faces in training set and a test
face image must be positioned on the same coordinate.
because of time limitation, I would have no time to study and search
to implement them.
So is there some kinds of thesis or source codes about what I wrote
or
internet sites ? |
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Giff
Guest
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| Posted: Wed Nov 12, 2008 2:36 pm Post subject: Re: preprocessing prior to excute PCA |
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dondora wrote:
[quote]So is there some kinds of thesis or source codes about what I wrote
or
internet sites ?
[/quote]
There are plenty of resources, also code. A good text to get introduced
to the topic is Tim Cootes' tech report about statistical models of
appearance for computer vision. However, when you say "I would have no
time to study ans search" it sounds a lot to me like you don>t have the
right attitude... |
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dondora
Guest
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| Posted: Fri Nov 14, 2008 4:18 am Post subject: Re: preprocessing prior to excute PCA |
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| Thanks anyway. |
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serg271
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| Posted: Fri Nov 14, 2008 5:24 am Post subject: Re: preprocessing prior to excute PCA |
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On Nov 14, 6:18 am, dondora <koni...@hanmail.net> wrote:
[quote]Thanks anyway.
[/quote]
Are you aware of OpenCV library ?
http://sourceforge.net/projects/opencvlibrary/ |
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Giff
Guest
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| Posted: Fri Nov 14, 2008 3:11 pm Post subject: Re: preprocessing prior to excute PCA |
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dondora wrote:
[quote]Thanks anyway.
[/quote]
What do you mean "anyway"? The text I suggested explains what you are
looking for in a simple and complete way. |
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Giff
Guest
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| Posted: Fri Nov 14, 2008 3:11 pm Post subject: Re: preprocessing prior to excute PCA |
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serg271 wrote:
[quote]Are you aware of OpenCV library ?
http://sourceforge.net/projects/opencvlibrary/
[/quote]
AFAIK OpenCV does not do what the OP is looking for. |
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