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Thread Subject:
Classification

Subject: Classification

From: sarah

Date: 9 Jun, 2011 10:29:04

Message: 1 of 6

I m taking images from net and they are of different resolutions. I do not know the which image is of which resolution. So each cell have different areas and perimeters. So there are different threshold for different images. I want to make different classes on the bases of different thresholds. Can any one tell me how to do that?

Subject: Classification

From: ImageAnalyst

Date: 9 Jun, 2011 10:37:47

Message: 2 of 6

I don't know what this means "I want to make different classes on the
bases of different thresholds." But there are a variety of automatic
thresholding algorithms, or you can develop your own. You just need
to try some. No one thresholding method will work for any/all
arbitrary image(s) grabbed off the internet.

Subject: Classification

From: sarah

Date: 9 Jun, 2011 11:34:04

Message: 3 of 6

ImageAnalyst <imageanalyst@mailinator.com> wrote in message <958d3cf5-4445-42da-a83d-de41d3b664f9@v8g2000yqb.googlegroups.com>...
> I don't know what this means "I want to make different classes on the
> bases of different thresholds." But there are a variety of automatic
> thresholding algorithms, or you can develop your own. You just need
> to try some. No one thresholding method will work for any/all
> arbitrary image(s) grabbed off the internet.

Sir,

I am working on different diseases. I have contacted my local hospitals. But they do not store images of the diseases. Then what do you suggest that where can I find images?

And I want to separate images in which objects have same area, perimeter. And make them one class. As different images have objects that have different area and perimeter. So there will be different classes. But i donot know how to do this.

So sir plz guide me I am really tense.

     

Subject: Classification

From: Steven_Lord

Date: 9 Jun, 2011 13:22:33

Message: 4 of 6



"sarah " <sarahrqazi@gmail.com> wrote in message
news:isqb3c$6v4$1@newscl01ah.mathworks.com...
> ImageAnalyst <imageanalyst@mailinator.com> wrote in message
> <958d3cf5-4445-42da-a83d-de41d3b664f9@v8g2000yqb.googlegroups.com>...
>> I don't know what this means "I want to make different classes on the
>> bases of different thresholds." But there are a variety of automatic
>> thresholding algorithms, or you can develop your own. You just need
>> to try some. No one thresholding method will work for any/all
>> arbitrary image(s) grabbed off the internet.
>
> Sir,
>
> I am working on different diseases. I have contacted my local hospitals.
> But they do not store images of the diseases. Then what do you suggest
> that where can I find images?

I'm guessing this is a project for school or work; in that case, I would
suggest asking your professor or your boss. Alternately your local hospital
may not have any images themselves but may have a source they use for images
to which they can direct you.

--
Steve Lord
slord@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com

Subject: Classification

From: sarah

Date: 10 Jun, 2011 12:18:03

Message: 5 of 6

Thanks Steven

Yes you are right I am working on the project. But as I said I have tried all the resources but of no use. Ultimately I have to consult the net.

Now please can you tell me how to classify the images in which objects have different features.

Subject: Classification

From: ImageAnalyst

Date: 10 Jun, 2011 12:46:47

Message: 6 of 6

If your project sponsor asks you to do a project to solve their
problem and then won't give you any of their images, then that is
indeed a bad situation. I guess it's really not that important to
them. It's not easy to get medical images because of privacy laws.
Anyway, I'm sure you know how to search the internet for images.

Here's another link that might not come up in your searches but it
probably doesn't have any of the specific images you're looking for:
http://www.cs.cmu.edu/~cil/v-images.html
It just has a list of databases of test images - a wide variety. And
I think the link is quite old.

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