True, however, OpenCV implements a bag of visual words, too [1] [1] http://docs.opencv.org/modules/features2d/doc/object_categorization.html http://docs.opencv

True, however, OpenCV implements a bag of visual words, too [1] [1] http://docs.opencv.org/modules/features2d/doc/object_categorization.html http://docs.opencv.org/modules/features2d/doc/object_categor...