Over-segmentation in the marker controlled watershed in Matlab

Question

I have a problem while implementing the marker controlled watershed in Matlab.

The input image is a binary mask which have two clustered object. An other image is an oth

Answer 1

This is how I would do this in Mathematica. Hope you can translate.

i1 = Binarize@Import["http://i.stack.imgur.com/qrYCL.jpg"];
marker = Binarize@Import[  "http://i.stack.imgur.com/CMI6Z.jpg"]; 

ImageMultiply[i1, WatershedComponents[i1, marker] // Colorize]