how can i extract features from MRI images and how to create data set from images to use for pattern recognition in neural network?

I am working on MRI images. I segment the images and identify the tissues. now I want to extract features from the images also how to create data set from the segmented images to use it in patter recognition in neural network?

[Greg Heath]

Try searching the internet in addition to the NEWSGROUP and ANSWERS

[hanem ellethy]

i am trying more than weak ago without any helpful information

[Greg Heath]

I just Googled

 image feature extraction pattern recognition

and got zillions of hits.

So is your problem

 a. extracting good features for classification

or

 b. designing a good classifier given the features and corresponding target class indices?

Greg

[Swapnali Chaudhari]

how do you perform segmentation and identify tissue ? can you pls help me

[Image Analyst]

Start with my Image Segmentation Tutorial in my File Exchange.

Answer 1

[Image Analyst]

You say "I segment the images and identify the tissues." OK, fantastic - you've done the hard part already . Now all you need to do is to call regionprops() if you want to measure any of the features that regionprops() measures. If you want some other very specialized thing then you'll have to measure that yourself.

[hanem ellethy]

thanks for your answer. all you mentioned above is already done now I want to create dataset for the NN and this dataset can be updated so i can take the extracted features from all images ...can you help?

[Image Analyst]

Sorry - I don't use neural networks. Perhaps start a new thread called something like "How to feed feature vectors into a neural network" and Professor Heath might see it and answer.

[Image Analyst]

Actually, he already saw this and answered above, but you didn't reply to his questions.