def get_scale_for_nth_feature_map(k, m=4, scale_min=0.1484375, scale_max=0.75):
    """Calculating scale value for nth feature map using the given method in the paper.
    inputs:
        k = nth feature map for scale calculation
        m = length of all using feature maps for detections, 6 for ssd300, 4 for blazeface

    outputs:
        scale = calculated scale value for given index
    """
    return scale_min + ((scale_max - scale_min) / (m - 1)) * (k - 1)