Greetings. I want to ask on how to calculate radius of circle in matlab

This is the example of image

Answer 1

[Benjamin Kraus]

Maybe one of these links will give you some ideas about how to get started:

• Detect and Measure Circular Objects in an Image
• imfindcircles
• Detecting Circular Objects in Images

Answer 2

[Image Analyst]

First segment the binary image to get the blobs you want the diameter of. Then simply call regionprops to get the equivalent circular diameters.

props = regionprops (binaryImage, 'EquivDiameter');
allDiameters = [props.EquivDiameter]