I have segmented a image using region growing. Now i want to count number of pixels in each regions. How can i do that?
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I have segmented a image using region growing. Now i want to count number of pixels in each regions. How can i do that? i want all the regions which have less than 100 pixels.
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Image Analyst
2014-6-20
% Extract only small blobs:
bigBlobs = bwareaopen(binaryImage, 100);
smallBlobs = binaryImage - bigBlobs;
% Measure areas
labeledImage = bwlabel(smallBlobs);
measurements = regionprops(labeledImage, 'Area');
allAreas = [measurements.Area]
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Macarena Santillan
2021-5-14
Where is the part that counts the pixels? I hace a similar issue. I am trying to find the amount of pixels enclosed in a region of my image. But I am not sure in which part of the code you jus typed are you extracting that number. Why are you measuring areas?
Image Analyst
2021-5-14
The regionprops() function is the part that counts all the pixels in each region.
allAreas is a vector that counts the number of pixels in each region. For example if your mask had two regions with 12000 and 25000 pixels, then allAreas would be [12000, 25000]
I am measuring areas because area has units of pixels and the area is the count of the number of pixels in the region.
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