初始化方法对象.

def refresh_method_objects(self):
        """初始化方法对象."""
        self.method_object_dict = {}
        for key, method in self.MATCHING_METHODS.items():
            method_object = method(self.im_search, self.im_source, self.threshold, self.rgb)
            self.method_object_dict.update({key: method_object})