How can I segment the document image ?

Layout based document segmentation

Answer 1

[Image Analyst]

Not sure what that is but you can find OCR algorithms here: http://iris.usc.edu/Vision-Notes/bibliography/contentschar.html#OCR,%20Document%20Analysis%20and%20Character%20Recognition%20Systems

As far as I know pso means particle swarm optimization and I'm not sure why you tagged this with that. I'll tag it ocr for you.

[kalpana]

i am using pso algorithm for document segmentation(blockwise segmentation.So can u help me in that.

[Walter Roberson]

Image Analyst doesn't do PSO work (or at least not in public :-) )

There are a lot of posts about PSO. http://www.mathworks.co.uk/matlabcentral/answers/?term=tag%3A%22pso%22