Matlab Bwareaopen equivalent function in OpenCV

Question

hi!

Im trying to find similar or equivalent funtion of Matlabs "Bwareaopen" function in OpenCV?

In MatLab Bwareaopen(image,P) removes from a binary image all connected components (objects) that have fewer than P pixels.

In my 1 channel image i want to simply remove small regions that are not part of bigger ones? Is there any trivial way to solve this?

Thank you!!

Answer 1

Take a look at the cvBlobsLib, it has functions to do what you want. In fact, the code example on the front page of that link does exactly what you want, I think. Essentially, you can use CBlobResult to perform connected-component labeling on your binary image, and then call Filter to exclude blobs according to your criteria.