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    "def get_iou(boxA, boxB, epsilon=1e-5):\n",
    "    x1 = max(boxA[0], boxB[0])\n",
    "    y1 = max(boxA[1], boxB[1])\n",
    "    x2 = min(boxA[2], boxB[2])\n",
    "    y2 = min(boxA[3], boxB[3])\n",
    "    width = (x2 - x1)\n",
    "    height = (y2 - y1)\n",
    "    if (width<0) or (height <0):\n",
    "        return 0.0\n",
    "    area_overlap = width * height\n",
    "    area_a = (boxA[2] - boxA[0]) * (boxA[3] - boxA[1])\n",
    "    area_b = (boxB[2] - boxB[0]) * (boxB[3] - boxB[1])\n",
    "    area_combined = area_a + area_b - area_overlap\n",
    "    iou = area_overlap / (area_combined+epsilon)\n",
    "    return iou"
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