homework/Day_001_HW.ipynb

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    "# 作業\n",
    "\n",
    "思考一下我們前面有提到圖片是矩陣，但維度可能會不一樣\n",
    "例如灰階圖只有兩個維度，RGB 彩圖則有 3 個維度\n",
    "\n",
    "假如今天我們把 RGB 3 個維度拆開來看會有甚麼不同的效果呢？"
   ]
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   "source": [
    "import cv2"
   ]
  },
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   "source": [
    "img_path = 'data/lena.png'"
   ]
  },
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    "img = cv2.imread(img_path, cv2.IMREAD_COLOR)\n",
    "#img_b, img_g, img_r = cv2.split(img)\n",
    "img_b = img[:, :, 0]\n",
    "img_g = img[:, :, 1]\n",
    "img_r = img[:, :, 2]"
   ]
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    "# 為了要不斷顯示圖片，所以使用一個迴圈\n",
    "while True:\n",
    "    cv2.imshow('R', img_r)\n",
    "    cv2.imshow('G', img_g)\n",
    "    cv2.imshow('B', img_b)\n",
    "\n",
    "    k = cv2.waitKey(0)\n",
    "    if k == 27:\n",
    "        cv2.destroyAllWindows()\n",
    "        break"
   ]
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