How to connect two objects based on least distance between them?

I have a binary image containing two separate objects...I want to connect them such that they are connected on basis where the distance between them is the least?

Answer 1

[Image Analyst]

Call bwboundaries. Then have some for loops where you check all the boundary coordinates to see which distance is least. Then you can use imline() to burn a connecting line into the image, like in the attached demo.

[peyush]

How to check for the boundary coordinates to find least distance?...please can you help

[Image Analyst]

See similar demo where I find the two points that are farthest apart. If you still can't figure it out, write back.

[peyush]

thanks for your reply...i have a query....what do the statement: maxDistance = -inf; mean?...thanks for your time

[Image Analyst]

That's initializing the maxDistance to minus infinity. Since you're checking each distance against the running current max value, what value are you going to check the very first distance against? You wouldn't pick a billion because no line in your image is a billion pixels long and you'd never get the correct max length if that were the first value. So you can pick any length from minus infinity to zero. The very first distance, no matter what it is, is guaranteed to be longer than that and so it will update the max length.

[peyush]

thanks for explaining... i am using the script for finding the nearest distance between two objects ...but i am getting the following error implementing it:

*Error using griddedInterpolant The coordinates of the input points must be finite values; Inf and NaN are not permitted.

Error in interp1 (line 169) F = griddedInterpolant(X,V(:,1),method);

Error in improfile (line 214) profi = interp1(cdist,pCoordinates,0:(max(cdist)/(N-1)):max(cdist));*

please help...

[peyush]

Sir please help me...

[Image Analyst]

Your code does not look like you adapted it at all? Did you?

Answer 2

[Image Analyst]

peyush, your code didn't even seem to attempt to modify my code at all. It looks like I need to do it for you. See the attached demo which makes the connection.

[peyush]

thank-you so much for helping me out :-)