how to extract the high intensity region from the image?

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sou el 25 de Ag. de 2014

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Comentada: sou el 30 de Ag. de 2014

i am in need to extrct high intensity region from the image ....can anybody provide a way to proceed...i have tried imhist function alredy but it fails...plz help me

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Ben11 el 25 de Ag. de 2014

Do you mean by selecting high-intensity pixels directly or selecting manually on the image the region you want?

sou el 30 de Ag. de 2014

selecting directly

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Image Analyst el 25 de Ag. de 2014

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See my Image Segmentation Tutorial on my File Exchange: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 It does exactly that. The coins are high intensity. It finds them and makes several measurements from them.