How to calculate the area of brain using MATLAB

I have attached my .JPEG file below, I need to calculate the area of that brain alone,not the area that contain letters.How can I achieve it. I don't want to binarize the image and find its area.Is there any other way to find the area of brain?

[Suba Suba]

If my question is wrong,please excuse me.Can anybody suggest me a way or links to do this?

[John D'Errico]

http://www.mathworks.com/matlabcentral/answers/29922-why-your-question-is-not-urgent-or-an-emergency

[Suba Suba]

Thank you

Answer 1

[Matt J]

If you binarize the image with some appropriate threshold, I would think it's just a matter of finding the region of maximum area,

stats = regionprops(yourImage>somethreshold,'Area')

[~,idx]=max([stats.Area]);

brainArea=stats(idx).Area,

[Suba Suba]

Got the idea, thank you for the reply