electromagnetism

2011 12 13
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I have 1000 images ,i have to apply electromagnetism algorithm ,to choose some clarity images,can anyone tell how to start please,because i have no idea about electromagnetism,my image consists of clarity and blurred,

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David Young
David Young 2011-12-13
This sounds interesting, and it may be possible to help, but you'll need to give some more information please. I've not heard of the electromagnetism algorithm for image processing. Why do you have to use it, and do you have any more information about it, such as a publication reference? What kind of images are you processing? Is the aim to distinguish clear images from blurred ones?
kash
kash 2011-12-13
I dont have publications in it
I have to perform two tasks ,one is to distinguish blurred from clear and next is
2) there are 3 features for an image ,i have extracted all those and have stored in a database,now i have to apply that algorithm
there will be 3 features for an image
what that algorithm must do is to select best feature among 3 ,it may select one ore two features which are best ,within those three,is it possible to do by applying this algorithm ,else is there any algorithm for these
David Young
David Young 2011-12-14
Do you have any information at all about the electromagnetism algorithm? You must have got the name from somewhere.
For the clear/blurred image problem, do you need to use the electromagnetism algorithm for it, or are you interested in general approaches?
For the feature selection problem, what do you mean by "best feature"? What makes a feature better than another?
kash
kash 2011-12-15
in final step i have to retrieve the image,for that i have to select best features using that algorithm ...for example best features means which have good quality than others.....I have attached link for u
http://www.sendspace.com/file/ghvet0
http://www.sendspace.com/file/90n6n8
David Young
David Young 2011-12-15
Thank you for the links. Now I know what the electromagnetism-like algorithm is. The problem is that I cannot see how to apply it to image analysis. Could you get more advice on this from your advisor, or whoever proposed that you should use this algorithm for these tasks?
Writing an implementation of the electromagnetism-like algorithm shouldn't be too hard in itself, but for MATLAB Answers you will need to make a start yourself and then ask about specific problems you find.

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David Young
David Young 2011-12-14

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To distinguish blurred and sharp images, you could use a standard measure of blur, such as this one.

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kash
kash 2011-12-15
David can u tell how to process the next part
David Young
David Young 2011-12-15
Do you mean finding good features using the electromagnetism-like algorithm? If so, I'm sorry, but I'm not sure how you'd do that - there are lots of choices to make, not least what the objective function should be. Unless there's already some work that addresses this, it's quite a big project and beyond what I can tackle here.
Maybe someone else has some thoughts?
kash
kash 2011-12-16
David is there any other algorithm for doing it
David Young
David Young 2011-12-16
For finding good features? Well, yes, there's a vast literature. I guess I'd start by checking out features like SIFT and SURF - Google these or look on Wikipedia and you'll find descriptions, and you'll also find MATLAB implementations you can download.

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kash
kash
2011-12-13

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