Find a square in an image and give back it's location and color in the image

I'm trying to make a code that could detect a square in an image and then give me the color and the coordinates of the square back to then move a robot to the given position. Problem is I can't find a function that can detect squares. My code works with circles by using the imfindcircles function but I can't seem to find a square version of this function.

[KSSV]

Attach an image for example.

[Hugo HAIDAR]

Answer 1

[Pratyush Roy]

The following link might be helpful for solving your problem:

https://www.mathworks.com/matlabcentral/answers/24943-detect-square-in-image

[Hugo HAIDAR]

I'll retry but it didn't work last time. Thank you very much!

Answer 2

[Matt J]

Instead of detecting squares as the first step, couldn't you just detect red, yellow, or blue pixel regions? I see some small blue circular regions, but it should be easy to use bwareafilt to reject those based on their size. Or you could exclude them based on the fact that they lie inside a larger circle, which you could detect using imfindcircles and bwconvhull.

[Hugo HAIDAR]

Thank you I will try