How to extract second largest blob from image?

I have a binary image, and have extracted the largest and second largest images from a grayscale image (using bwareafilt). This gives me the image below:

How do i extract the image on the right (the second largest image)?

Using regionprops I have the Area, Centroid and Bounding Box for both blobs, but I am not sure how to use these values to extract the image on the right.

Thank you.

[Roark Menezes]

Sorry I solved it, dont know if i should delete or not but I did the following, BW is the binary image:

bwareafilt(BW, 2)-bwareafilt(BW, 1); 

[darova]

You can also use bwregionprops to find area of each blob

[Roark Menezes]

How would I remove the larger image knowing just the area?

[KSSV]

Replace that region pixel values with black ones....

Answer 1

[KALYAN ACHARJYA]

large_1=bwareafilt(binary_image,1); %Extracting Large Blob
large_2=binary_image & ~large_1; % Logical Operation to get 2nd largest Blob
large_2=bwareafilt(large_2,1);  % Remove extra small blobs 
imshow(large_2);