feature extraction on specified cordinate on image

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Hi I want to extract some features for train data on the specified part of the image I don't know how can i go to that part and run my code for the features?for example the malignant mass is located at 538 681 29 as is indicated in the ground truth data and I want the features at that region. Thank you in advance to guide me.

Answers (2)

Jing
Jing on 19 Feb 2013
For extracting features of a part of the image, you can just index into the image or create a new image of that part to do the extraction.

Image Analyst
Image Analyst on 19 Feb 2013
If you still need help, post your image somewhere, and tell us where you posted it and let us know what kind of help you need. http://www.mathworks.com/matlabcentral/answers/7924-where-can-i-upload-images-and-files-for-use-on-matlab-answers
  3 Comments
bahar h
bahar h on 21 Feb 2013
Hi Image Analyst, thank you for the tutorial but I couldn't find my answer within it,actually I have some mammogram images that I know the right position of malignant and benign masses on them,as I said before the position are written in the database for example like this: mdb023 G CIRC M 538 681 while: G - Fatty-glandular and M - Malignant now I want to extract some features like GLRLM,GLDM,morphological and so on,at the mentioned positions to use as my train data for svm classifier and I don't know how can I go to the exact mentioned ROI to extract the features.the image is from MIAS database and I don't know if I am allowed to share it on dropbox or not?I will be appreciated if you help me. Thank you
Image Analyst
Image Analyst on 21 Feb 2013
That's a subject that people have been working on for decades so it's certainly not going to be any 5 minute demo that I can whip up for you. Please go to VisionBib for a list of papers on the subject. http://iris.usc.edu/Vision-Notes/bibliography/contentsmedical.html#Medical%20Applications,%20CAT,%20MRI,%20Ultrasound,%20Heart%20Models,%20Brain%20Models

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