Re: how to find intersection in image matrix and plot it

Sorry let me rephrase this..finding the intersection between 0 and 1..I'm guessing command 'find'..but I dont quite understand the command..about finding nonzero element..
and plot the intersection (intersection between black and white if referring to the image so logically between 0 and 1 ) am I right ? Sorry I'm new to matlab..

Thanks.