Image Processing Basics with NumPy Getting Started with Images in Python An image consists of a rectangular array of pixels where each one is assigned a colour. For example, here is an image with 9 ...

As noted above, NumPy arrays behave a lot like other Python objects, for the sake of convenience. For instance, they can be indexed like lists; arr[0] accesses the first element of a NumPy array.

NumPy is known for being fast, but there's always room for improvement. Learn how to use Cython to iterate over NumPy arrays at the speed of C.