dels.
    <li> maxckpt: Maximum number of latest models to save.
    <li> display_step: Number of steps after which to display and save the training information.
    <li> rrange: Amount in degree suggested by the user by which images can be rotated for augmentation. 
    <li> trange: Amount in pixels suggested by the user by which the image can be translated in both x and y directions for augmentation. 
    <li> scale_range_factor: Scaling amount suggested by for augmentation. Images can be scaled between [