MikeMpapa

import numpy as np
import struct


def read_hog(filename, batch_size=5000):
    """
    Read HoG features file created by OpenFace.
    For each frame, OpenFace extracts 12 * 12 * 31 HoG features, i.e., num_features = 4464. These features are stored in row-major order.
    :param filename: path to .hog file created by OpenFace
    :param batch_size: how many rows to read at a time