how can i connect between these squares in a line from the centers ????

[Rik]

What have you tried so far?

[David Hill]

Do you have the coordinates for the squares?

[ahmad dabbah]

i dont have coordinates i have this pic and i have to connect between them its like a random coordinates

Answer 1

[Marcel]

If you know the coordinates, width and height of each square, you can use the X and Y coordinates to get the top left corner of each square.

Now that you have the left corner, you add an "offset" to it, which would be half the height and width of the square to get the middle.

Then you can draw a line like this

% frame is something like you get from imread or getsnapshot
frame = insertShape(frame, 'Line', ...
                            [x1 y1 x2 y2], 'Color', "blue", "LineWidth", 4);

% X1 & y1 is the first square 
% x2 & y2 is the second one
% by doing so you can connect them

[ahmad dabbah]

i dont have coordinates i have this pic and i have to connect between them its like a random coordinates

[Rik]

You have an image, therefore you have coordinates. An image is nothing more than a list of intensity values layed out in a grid. You need to determine the location of the red pixels. Do you have any idea where to start with that?