Refactoring machine learning code - namedtuple

Instead of using sometimes confusing indexing in your code, use a namedtuple instead. It’s backwards compatible, so you can still use the index, but you can make your code much more readable. This is especially helpful when you transform between PIL and numpy based code, where PIL uses a column, row notation while numpy uses a row, column notation. Let’s consider this piece of code where we want to get the pixel locations of several points which are in the numpy format:...

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