How to draw a line on an image in matlab?

Question

I have two points lets say:

• P(x,y) [point lies at the top of image]
• P\'(x\',y\') [point lies at bottom of image]

Now i want to draw a l

Answer 1

You could download and use hline and vline in conjunction with hold on, using the techniques from visiting Steve on Image Processing. Or just use his techniques. Either way it works.