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Thread Subject:
SVM Training

Subject: SVM Training

From: Muhammad Imran

Date: 13 Aug, 2012 09:16:07

Message: 1 of 4

Hi all
i want to train the SVM using image features.
i am new in image processing and matlab, can any one help me how to train the SVM
using the extracted feature of the image.
if some one used SVM for CBIR then please help also.

Thanks in Advance.

Subject: SVM Training

From: Rob Campbell

Date: 13 Aug, 2012 17:24:08

Message: 2 of 4

"Muhammad Imran" wrote in message <k0agkm$rul$1@newscl01ah.mathworks.com>...
> Hi all
> i want to train the SVM using image features.
> i am new in image processing and matlab, can any one help me how to train the SVM
> using the extracted feature of the image.
> if some one used SVM for CBIR then please help also.
>

This is a somewhat open-ended question. I guess you have the extracted features and want to see how seperable two groups of images are? What have you tried so far? You could start with discriminant analysis, which is the most simple thing to do, and see where that takes you. It's usually a good idea to try multiple classifiers.

Subject: SVM Training

From: Muhammad Imran

Date: 14 Aug, 2012 08:01:12

Message: 3 of 4

"Rob Campbell" wrote in message <k0bd7o$ae5$1@newscl01ah.mathworks.com>...
> "Muhammad Imran" wrote in message <k0agkm$rul$1@newscl01ah.mathworks.com>...
> > Hi all
> > i want to train the SVM using image features.
> > i am new in image processing and matlab, can any one help me how to train the SVM
> > using the extracted feature of the image.
> > if some one used SVM for CBIR then please help also.
> >
>
> This is a somewhat open-ended question. I guess you have the extracted features and want to see how seperable two groups of images are? What have you tried so far? You could start with discriminant analysis, which is the most simple thing to do, and see where that takes you. It's usually a good idea to try multiple classifiers.

Rob thanks for your response,

Actually as i stated i am new in this area.
i extracted features using haar-wavelets
now i have to train the SVM to classify images.
if you have svm code please share with me or any other help will be appriciated.

Subject: SVM Training

From: Yu

Date: 14 Aug, 2012 13:48:06

Message: 4 of 4

Hi Imran,

I think 'LibSVM' is really good resource to start for SVM although it not include several ‘kernel functions’ and it offer a lot of choices in different ‘Languages’ like C or Matlab ....many...many. It also has a python application for optimization the parameter like ‘g’ and ‘c’ in SVM.
For image As a fresher, I think you need three steps for it. First is the 'Feature' Second is the 'Descripture' then 'Classifier'. In each step there a huge options for different applications.

Good luck with your project,

Cheers,

"Muhammad Imran" wrote in message <k0agkm$rul$1@newscl01ah.mathworks.com>...
> Hi all
> i want to train the SVM using image features.
> i am new in image processing and matlab, can any one help me how to train the SVM
> using the extracted feature of the image.
> if some one used SVM for CBIR then please help also.
>
> Thanks in Advance.

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