test_cases/measure_pixel_count_of_labels.ipynb

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    "def measure_pixel_count_of_labels(label_image):\n",
    "    \"\"\"\n",
    "    Takes a label image and returns a list of counts of number of pixels per label.\n",
    "    \"\"\"\n",
    "    import skimage\n",
    "    stats = skimage.measure.regionprops(label_image)\n",
    "    return [s.area for s in stats]"
   ]
  },
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   "cell_type": "code",
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    "def check(candidate):\n",
    "    import numpy as np\n",
    "    \n",
    "    result = candidate(np.asarray([\n",
    "        [0,1,0,0,0],\n",
    "        [0,0,0,0,0],\n",
    "        [0,2,2,2,0],\n",
    "        [0,3,3,0,0],\n",
    "        [0,0,0,4,0],\n",
    "    ])) \n",
    "    assert np.array_equal([1,3,2,1], result)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "55fdf71d-d03c-4919-9765-0a27e27fd737",
   "metadata": {},
   "outputs": [],
   "source": [
    "check(measure_pixel_count_of_labels)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "cf935c2c-112a-440b-a9e2-c2f994bb6e7e",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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