Any questions, suggestions are welcome on zoltan [at] matlabtricks [dot] com.
Please note, that due to my limited amount of free-time I will not answer to homework-related questions especially when no clear explanation of the problem is provided.
It is very distressing to get such e-mails containing sentences like this:
I am doing my homework on image segmentation, please guide me. | I need help and have the deadline on friday. | Urgent help needed! Please send me the code.
If you are not able/willing to send a detailed explanation of your problem, then why are you expecting me to take the time to guess it? I am always happy to help in MATLAB programming related questions but not in the situations described above.