how to select an area in an image using segmentation thresholding on the basis of pixel intensities?

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i am selecting an area in an image in which i have to embed my file but i m having issues that what is the criteria or function to select area on the basis of pixel intensities using segmentation thresholding...

Answers (1)

Image Analyst
Image Analyst on 14 Apr 2014
This is precisely what my Image Segmentation Tutorial shows http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
It picks out different coins based on their area.

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