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

load clown
image(X)
colormap(map)
c = size(X,2)
mid = round(c/2)
X(:,mid) = 1
image(X)