Reducing opacity of an image using python an PIL

gistfile1.txt

x

images.ipynb

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   "cell_type": "code",
   "execution_count": 39,
   "metadata": {
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   "source": [
    "from PIL import Image, ImageEnhance"
   ]
  },
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   "cell_type": "code",
   "execution_count": 40,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "im = Image.open(\"/home/mcarter/cubie/home/mcarter/redact/docs/pics/2014-02.jpg\", \"r\")"
   ]
  },
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   "cell_type": "code",
   "execution_count": 41,
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    "im.show()"
   ]
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   "cell_type": "code",
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   "outputs": [],
   "source": [
    "def ReduceOpacity(im, opacity):\n",
    "    \"\"\"\n",
    "    Returns an image with reduced opacity.\n",
    "    Taken from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/362879\n",
    "    \"\"\"\n",
    "    assert opacity >= 0 and opacity <= 1\n",
    "    if im.mode != 'RGBA':\n",
    "        im = im.convert('RGBA')\n",
    "    else:\n",
    "        im = im.copy()\n",
    "    alpha = im.split()[3]\n",
    "    alpha = ImageEnhance.Brightness(alpha).enhance(opacity)\n",
    "    im.putalpha(alpha)\n",
    "    return im"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "metadata": {
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   "outputs": [],
   "source": [
    "im1 = ReduceOpacity(im, 0.001)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {
    "collapsed": true
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   "outputs": [],
   "source": [
    "im1.show()"
   ]
  },
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     "ename": "ImportError",
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      "\u001b[1;31mImportError\u001b[0m: No module named 'mython'"
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   "source": [
    "import mython"
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