Function write_datafiles

Load and preprocess images from a directory and write them to a file. Args: directory: Directory of alphabet sub-directories. write_file: Filename to write to. resize: Whether to resize the images. rotate: Whether to augment the dataset with rotations. new_width: New resize wi

(directory, write_file,
                    resize=True, rotate=False,
                    new_width=IMAGE_NEW_SIZE, new_height=IMAGE_NEW_SIZE,
                    first_label=0)