A jupyter notebook showing how to display an interactive image and capture and return the position and other information about the mouse each time it is clicked over the image.

CaptureClickJupyter.ipynb

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    "%matplotlib notebook\n",
    "import matplotlib.pyplot as plt\n",
    "import numpy as np\n",
    "import ipywidgets as wdg  # Using the ipython notebook widgets\n",
    "\n",
    "# Create a random image\n",
    "a = np.random.poisson(size=(12,15))\n",
    "fig = plt.figure()\n",
    "plt.imshow(a)\n",
    "\n",
    "# Create and display textarea widget\n",
    "txt = wdg.Textarea(\n",
    "    value='',\n",
    "    placeholder='',\n",
    "    description='event:',\n",
    "    disabled=False\n",
    ")\n",
    "display(txt)\n",
    "\n",
    "# Define a callback function that will update the textarea\n",
    "def onclick(event):\n",
    "    txt.value = str(event)  # Dynamically update the text box above\n",
    "    \n",
    "# Create an hard reference to the callback not to be cleared by the garbage collector\n",
    "ka = fig.canvas.mpl_connect('button_press_event', onclick)"
   ]
  }
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