flip、transpose  图像翻转镜像

char bmp_path[_MAX_PATH];

memset(bmp_path, 0, _MAX_PATH);
sprintf_s(bmp_path, _MAX_PATH, ".\\EdgeOffset\\%d_%d.bmp", i_bmp++, rand());

flip(offset_src, offset_src, 1);//图像镜像   1：Y轴  0：x轴   -1：xy轴

imwrite(bmp_path, offset_src);