Image processing

Several libraries bring image processing capabilities to Python. SciPy, the main scientific Python library, contains a few image processing routines. scikit-image is another library dedicated to image processing. We will show an example in this section, inspired by the one at http://scikit-image.org/docs/dev/auto_examples/plot_equalize.html.

When using the Anaconda distribution, scikit-image can be installed with conda install scikit-image.

Let's import some packages.

In [1]: import numpy as np
        import skimage
        from skimage import img_as_float
        import skimage.filters as skif
        from skimage.color import rgb2gray
        import skimage.data as skid
        import skimage.exposure as skie
        from ipywidgets import interact
        import matplotlib.pyplot as plt
        import seaborn
        %matplotlib inline

There are a few test images in scikit-image. Here is one:

In [2]: chelsea = skid.chelsea()
In [3]: chelsea.shape, chelsea.dtype
Out...