draw contour for given pixel value

Posted by Neil Fazel on
URL: http://imagej.273.s1.nabble.com/draw-contour-for-given-pixel-value-tp5003651.html

For an image with almost elliptic intensity contours, is there a way to draw a selection for a contour corresponding to a given pixel value? For example, I would click on a pixel and it would start from there and trace an almost elliptical contour having that pixel's value.  Since the selection would be almost elliptic but not completely, the elliptical selection tool, or oval profiling macro, can't be used.

I have attached an example of such an image.

Thanks,
Neil


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