I have a binary image having 3 or more blobs…I need to display an image which displays only the two biggest(biggest in terms of area) blobs while rejectingrejecting others….how can I do this?
MATLAB: How to get the two biggest objects/blobs from a binary image
image analysisimage processingImage Processing Toolboximage segmentation
Related Solutions
See my Image Segmentation Tutorial where I demonstrate that: http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial---blobsdemo--
In the line
biggestBlob=ismember(labeledImage,indexOfBiggest(1));you are finding the biggest by looking at the first index in a sorted array. So to get the second biggest you do
secondBlob=ismember(labeledImage,indexOfBiggest(2));Then you can combine them simply by doing
twoBiggest = biggestBlob | secondBlob;This is because both blobs are binary - 1s and 0s - so by doing an OR operation it makes every white part in both images seen in both images.
Best Answer