Thread Subject:

SVM Training

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.

"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 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.

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.