output_mask_addition
output_mask_addition

split up output_mask tests so that both mask_only=True shows up first in one and False shows up first in the other

danforthcenter/plantcv,stiphyMT/plantcv,stiphyMT/plantcv,danforthcenter/plantcv,danforthcenter/plantcv,stiphyMT/plantcv