finding the coordinates of points with maximum intensity

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sandeep
sandeep 2014-10-16
评论： sandeep 2014-11-6
i have a image file of a welded metal in jpg format. In the image ,the defect in welding appears as an object having maximum intensity.I need a code that can convert the coordinates having intensity above a certain given threshold to '1' and all other points below threshold to '0'. please help. thanks

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Mohammad Abouali
Mohammad Abouali 2014-10-16
编辑：Mohammad Abouali 2014-10-16
If "I" is your intensity image and your threshold is stored in "thresh" pretty much all you need to do is:
mask= I>Thresh
Mask would have 1 for every pixel that has the intensity more than the threshold and the rest would be zero.
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Image Analyst
Image Analyst 2014-11-6
This (color tracking) seems like enough of a different question that it should be on its own, rather than as part of this one on thresholding, which has already been marked as solved. Please make a new question and post an image.

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Image Analyst
Image Analyst 2014-10-16
This is just what my Image Segmentation Tutorial does. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862 Then it goes beyond that - it also finds centroid, area, etc. and crops out the regions. Adapt it as needed.

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