OpenCV-Python-00-Setup-Environment.ipynb

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    "# 0. 개발환경 설정\n",
    "\n",
    "## OpenCV-python 설치하기\n",
    "```bash\n",
    "pip install --ignore-installed --upgrade --trusted-host pypi.org --trusted-host files.pythonhosted.org matplotlib numpy requests\n",
    "pip install --ignore-installed --upgrade --trusted-host pypi.org --trusted-host files.pythonhosted.org opencv-contrib-python\n",
    "```\n",
    "\n",
    "## 샘플 이미지 파일 다운로드\n",
    "* **Windows**\n",
    "download_image.bat 실행\n",
    "* **Linux / MacOS**\n",
    "download_image.sh 실행\n",
    "\n",
    "## [옵션] 샘플이미지 크기조정"
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    "import os\n",
    "import cv2\n",
    "\n",
    "MAX_WIDTH = 1280\n",
    "IMAGE_DIR = './images/'\n",
    "\n",
    "def resizeSample(fileName):\n",
    "    oriimg = cv2.imread(fileName)\n",
    "    height, width, depth = oriimg.shape\n",
    "    if(width > MAX_WIDTH):\n",
    "        imgScale = 1.0;\n",
    "        newX = oriimg.shape[1];\n",
    "        while(newX > MAX_WIDTH):\n",
    "            imgScale *= 0.5;\n",
    "            newX *= 0.5\n",
    "        newY = oriimg.shape[0]*imgScale\n",
    "        newimg = cv2.resize(oriimg,(int(newX),int(newY)))\n",
    "        cv2.imwrite(fileName, newimg)\n",
    "        \n",
    "for f in next(os.walk(IMAGE_DIR))[2]:\n",
    "    if(\".jpg\" in f):\n",
    "        print(\"Resize {0}\".format(f))\n",
    "        resizeSample(IMAGE_DIR + f)"
   ]
  }
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