how can i get a position of rectangle in image?

i used BlobAnalysis to detect ROI, every region of interest so is enclosed with rectangle, i wanna extract the position of each rectangle (x,y,z,k)...any code please

Answer 1

[Image Analyst]

See my Image Segmentation Tutorial where I get the bounding box of every blob and crop it out as a sub-image. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862