Having a slice(medical image), how can i find out the radii and area of sphere using region props

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MoonPie1
MoonPie1 2015-12-3
评论： Image Analyst 2015-12-9
I have a slice and it contains center points of 4 spheres...The spheres are of different radii.. how can i find the radii and area of each sphere?

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Image Analyst
Image Analyst 2015-12-3
This is done in my image Segmentation Tutorial with coins. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
Just ask regionprops to get the area and 'EquivDiameter'
measurements = regionprops(CC, 'Area', 'EquivDiameter');
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MoonPie1
MoonPie1 2015-12-9
编辑：MoonPie1 2015-12-9
1. How to sustain required elements and delete unnecessary elements from an array? 2. I have 4 values of connected components, how to display them as an image?
Image Analyst
Image Analyst 2015-12-9
  1. My demo shows you how to select certain blobs based on some criteria like area. Did you see that code?
  2. I'm not sure what you're asking. What is "4 values of connected components". I show you how to get the connected components, labeled image and display it in both grayscale and with different colors for each individual blob. What do you want and why isn't my code doing it?

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