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.
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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.
See my image segmentation tutorial: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
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