方法一
#ifdef __cplusplus
#import <opencv2/opencv.hpp>
#import <opencv2/stitching/detail/blenders.hpp>
#import <opencv2/stitching/detail/exposure_compensate.hpp>
#endif
方法二
改动所有使用NO宏的地方，改成 NO_EXPOSURE_COMPENSATOR = 0
// enum { NO, FEATHER, MULTI_BAND };
enum { NO_EXPOSURE_COMPENSATOR = 0, FEATHER, MULTI_BAND };
