seeing if auto detect on ndi label function fixes travis ci test.
seeing if auto detect on ndi label function fixes travis ci test.

stiphyMT/plantcv,stiphyMT/plantcv,danforthcenter/plantcv,jshoyer/plantcv,stiphyMT/plantcv,AntonSax/plantcv,danforthcenter/plantcv,AntonSax/plantcv,danforthcenter/plantcv,jshoyer/plantcv