基于OpenCV的颜色识别。经典的颜色识别的经典应用就是车牌定位了，因为中国的车牌无非就是蓝色和黄色，还有就是交通标志定位也是个应用。(Color recognition based on OpenCV.The classic application of color recognition is license plate location, because China's license plate is blue and yellow, and traffic sign is also a