how to calculate vertical distance between split row and center of gravity of the two involved component?

seperating overlapping words. here cross links are there

Answer 1

[Image Analyst]

I'm guessing this is OCR? And you want to separate lines of text and letters? Post your image, though keep in mind there is no OCR toolbox so you're pretty much on your own. Read these links:

http://iris.usc.edu/Vision-Notes/bibliography/contentschar.html#OCR,%20Document%20Analysis%20and%20Character%20Recognition%20Systems

http://www.mathworks.com/matlabcentral/answers/6200-tutorial-how-to-ask-a-question-on-answers-and-get-a-fast-answer