utils.py

from PIL import ImageDraw


def show_bboxes(img, bounding_boxes, facial_landmarks=[]):
    """Run P-Net, generate bounding boxes, and do NMS.

    Arguments:
        img: an instance of PIL.Image.
        bounding_boxes: a float numpy array of shape [n, 5].
        facial_landmarks: a float numpy array of shape [n, 10].

    Returns:
        an instance of PIL.Image
    """

    img_copy = img.copy()
    draw = ImageDraw.Draw(img_copy)

    for b in bounding_boxes:
        draw.rectangle([
            (b[0], b[1]), (b[2], b[3])
        ], outline='white')

    for p in facial_landmarks:
        for i in range(5):
            draw.ellipse([
                (p[i] - 1.0, p[i + 5] - 1.0),
                (p[i] + 1.0, p[i + 5] + 1.0)
            ], outline='blue')

    return img_copy