How to find pixel coordinates of a line between two points on an image?

Hello,

If I have two pixels in an image, let's say (x1, y1) and (x2, y2) and i want to draw a line between them.

I was using line() to do this, but I don't know how many pixels does that line have, or their position and value.

Is there a way of finding out maybe not all of them but a subset of them to which i can perform some verifications?

And if so, how can I get their coordinates?

Thanks a lot.

[Monica Roberts]

Maybe improfile? https://www.mathworks.com/help/images/ref/improfile.html

[bkpdilau]

Unfortunately improfile wants you to manually sellect points. I have the end of the line coords, and i want to get some in between points.

Answer 1

[bkpdilau]

I used an implementation of Bresenham's algorithm and it seems to be working.

You can find it here:

https://www.mathworks.com/matlabcentral/fileexchange/28190-bresenham-optimized-for-matlab

[Casian Filigean]

Thank you, this is a very elegant implementation, you must have thought really hard to get such a good and optimised option