hi, i've experience of working in two similar projects. can you send me an image and tell what all you need identified or classified and i shall let you know how exactly we can proceed. you must know that different algorithms need to be applied for different classification problems. this is different than face recognition problems from images, therefore, do not go with something used for that. this is a classification problem rather than identification. therefore, ideally we will have to find features that can classify an object and then label them accordingly. anyways, let me know what your project is and we can discuss. thanks.