Выберите равномерно распределенное подмножество характерных точек
BRISKPoints | KAZEPoints | MSERRegions | ORBPoints | SURFPoints | cornerPoints | detectBRISKFeatures | detectFASTFeatures | detectHarrisFeatures | detectKAZEFeatures | detectMinEigenFeatures | detectORBFeatures | detectSURFFeatures | extractFeatures | matchFeatures