Detect Marker Position in 2D image

问题:

I am using Java as programming language to fix a problem I am facing at the moment.

I need to know the position (x,y) of the markers on the following image.

Is that already been done with some java library I guess no?

The markers are the little black squares.

Thank you so much in advance for your help

回答1:

I think chaper two of the book Mastering OpenCV with Practical Computer Vision Projects would be a good starting point.