how to segment binary image

I have OCR in Arabic. I want to segment characters separated by space. Consider following image and help plz. There are three characters in this image.

Answer 1

[Image Analyst]

Not sure what you mean. That image is already segmented - you produced a binary image by segmenting a gray scale or color image. If you want to identify each blob by connected components, you can use bwlabel() or bwconncomp().