Certain outdated features

[yatharthahuja]

Certain modules and libraries used in this code are not up to date with current standards.
For eg:
In detect_face:
It should be
data_dict = np.load(data_path, allow_pickle=True, encoding='latin1').item()
to accommodate updated attributes.

Also, scipy use has depreciated instead imageio can be used in preprocess.py.

[athulp01]

Hey @yetinater, you can create a pull request if you have modified it.