clustering and pixel count

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HJ 2021-5-29

评论： Image Analyst 2021-5-31

I want to differentially recognize circular spots within a binary image.

I also want to count how many pixels are inside each individually recognized spot.

Is there a way?

Image Analyst 2021-5-30

I do exactly this in my Image Segmentation Tutorial with the standard coins demo image:

Please study it. Basically

props = regionprops(mask, 'Area');
allAreas = [props.Area] % Areas of all blobs in pixels.

but there's more to it so look over my well commented tutorial.

HJ 2021-5-31

编辑：HJ 2021-5-31

Thanks for the advice.

I followed the tutorial and verified that the coin was detected using the regionprops function.

However, there are problems that are not recognized in some coins. I wonder if I can lower the coin detection sensitivity.

Image Analyst 2021-5-31

What problems? Were they supposed to be recognized? What steps did you take to recognize/detect those problems?

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