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how can i calculate a variance of each BLOB in image

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bay rem
bay rem 2016-1-20
编辑： Image Analyst 2016-1-20
hello every one; i need to know how to calculate a variance of each blob contains in one image, thank you in advance

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Image Analyst
Image Analyst 2016-1-20
编辑：Image Analyst 2016-1-20
Ask regionprops to return PixelValues for the blobs.
measurements = regionprops(labeledImage, 'PixelValues');
Then for the kth blob:
blobVariance(k) = var(measurements(k).PixelValues);

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