Processing webcam images in real time from the notebook
In this recipe, we show how to let the notebook and the Python kernel communicate in both directions.
Specifically, we will retrieve the webcam feed from the browser using HTML5's
<video> element, and pass it to Python in real time using the interactive capabilities of the IPython notebook 2.0+. Then, we will process the image in Python with an edge detector (implemented in scikit-image), and display it in the notebook in real time.
Most of the code for this recipe comes from Jason Grout's example, available at https://github.com/jasongrout/ipywidgets.
You need Pillow and scikit-image for this recipe. (For more information, refer to Chapter 11, Image and Audio Processing.)
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