r \\ g \\ b \end{bmatrix} \] The latter is best practice, since this allows us to avoid looping over rows/columns of the image, we could just call img.dot(A.T) and it will automatically compute the ...

You’d be forgiven for thinking that receiving data transmissions from orbiting satellites requires a complex array ... the Python Imaging Library (PIL) to convert that into a 2D image.

so they aren’t constrained by Python’s limitations. NumPy provides a specialized array type that is optimized to work with machine-native numerical types such as integers or floats.