hi
i want to extract lines from a binary image. i need source code in C#

What code do you have so far? What exact problem are you having?

I'd suggest starting by opening up the image file in binary "rb", and depending on what is a line for you, extract them out accordingly.

i m doing image procssing project i want to extract lines from a binary image which is loaded in a pic box. i hav come through many algorithms like square scan algorithm and hough transform .i need implementation of these algorithms
thnx

Well as you know from the stickies we wont do it for you, what code do you have so far? and what seems to be wrong with it?