imread and imsave are no longer available in scipy.misc, please update script to use imageio instead

Both _imread_ and _imsave_ are not available on current version of scipy:

```
AttributeError: module 'scipy.misc' has no attribute 'imread'
```

Need to change

```
import scipy.misc as misc
```

to

```
import imageio
```

and update the function calls to use imageio.imread and imageio.imsave

Will also need `python-imageio` to be installed