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  {
   "cell_type": "code",
   "execution_count": null,
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   "outputs": [],
   "source": [
    "%reload_ext autoreload\n",
    "%autoreload 2\n",
    "\n",
    "import numpy as np\n",
    "import pylab as plt\n",
    "import seaborn as sns\n",
    "import excolor"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Colorize bw / greyscale image"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"https://github.com/timpyrkov/excolor/blob/master/img/image_bw.png?raw=true\"\n",
    "\n",
    "# Load image from url (image_bw.png from github repository)\n",
    "img = excolor.load_image(url)\n",
    "\n",
    "# Show source grayscale image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(img)\n",
    "plt.axis(\"off\")\n",
    "plt.show()\n",
    "\n",
    "# Colorize image\n",
    "green, blue = \"#CCFF66\", \"#2980BA\"\n",
    "img = excolor.colorize_image(url, green, blue)\n",
    "\n",
    "# Show colorized image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(img)\n",
    "plt.axis(\"off\")\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Convert to greyscale, keep channels"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"https://github.com/timpyrkov/excolor/blob/master/img/image_color.png?raw=true\"\n",
    "\n",
    "# Load image from url (image_color.png from github repository)\n",
    "img = excolor.load_image(url)\n",
    "\n",
    "# Show source image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(img)\n",
    "plt.axis(\"off\")\n",
    "plt.show()\n",
    "\n",
    "# Convert to greyscale\n",
    "greyscaled = excolor.greyscale_image(url)\n",
    "\n",
    "# Show greyscale image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(greyscaled)\n",
    "plt.axis(\"off\")\n",
    "plt.show()\n",
    "\n",
    "print(\"Source image array shape:\", np.asarray(img).shape)\n",
    "print(\"Greyscaled image array shape:\", np.asarray(greyscaled).shape)\n"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Convert image to low-polygonal"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"https://github.com/timpyrkov/excolor/blob/master/img/image_color.png?raw=true\"\n",
    "\n",
    "# Load image from url (image_color.png from github repository)\n",
    "img = excolor.load_image(url)\n",
    "\n",
    "# Show source image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(img)\n",
    "plt.axis(\"off\")\n",
    "plt.show()\n",
    "\n",
    "# Convert to low-polygonal\n",
    "img = excolor.triangle_wallpaper(img=img, density=30, distortion=0.4, size=(640,480))\n",
    "\n",
    "# Sjow low-polygonal image\n",
    "plt.figure(figsize=(6,6), facecolor=\"#00000000\")\n",
    "plt.imshow(img)\n",
    "plt.axis(\"off\")\n",
    "plt.show()\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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