requirements.txt

six
# The test for imgaug.augmenters.blend.blend_alpha() fails for numpy<1.15.
# All other tests seemed to work as of 2019/01/04.
numpy>=1.15
scipy
Pillow
matplotlib
scikit-image>=0.14.2
opencv-python-headless
# imageio versions past 2.6.1 do not support <3.5 anymore
imageio<=2.6.1; python_version<'3.5'
imageio; python_version>='3.5'
Shapely
# numba is not available in <=3.5
numba; python_version>='3.6'