Tracking binary images and get x and y data from it (return their location)

Hello,

I have a video, that I split and I make a cycle, where on every single frame in that video I applyed segmentation. So now, every single frame is in binary.

In video, this object is rotating, and I would like to get a data from it, so x and y values from every frames, return their location.

Is in Matlab any function that I get detect the line and also the circle? I would like to mark the exact pixel I want and than get a data from it.

Or is there any other idea?

Thank you so much for your answers

Answer 1

[Image Analyst]

What exactly does "get a data from it" mean? You can get all the x,y data from a binary image like this

[y, x] = find(binaryImage);

You can find the angle of the line by asking @doc:regionprops for 'Orientation'. Make sure you have only one blob in there. Use bwconvhull if you need to.

[Eliska Paulikova]

But I would like to get concrete pixel.

[Image Analyst]

Which pixel is the "concrete pixel"?

See my Image Processing Tutorial in my File Exchange:

Image Analyst's File Exchange

[Eliska Paulikova]

This one.. I have already know the middle of the circle and radius of circle.. But I would like also get the y and x values of that line

[Eliska Paulikova]

[Image Analyst]

Make a mask of the circle then use it to erase the original mask. Then use find to find the coordinates of the remaining pixels representing the concrete.

concreteMask = originalMask; % Initialize
concreteMask(circleMask) = false;
[rows, columns] = find(concreteMask);

[Eliska Paulikova]

Thank you so much

I appreciate it.