Extract Dct coefficient from images python?

Question

I have seen the post describing how DCT coefficients can be extracted and visualized in C++.

I have seen the python API. Where there is a function bob.ip.base.DCTFeatures().

bob.ip.base.DCTFeatures (coefficients, block_size, [block_overlap], [normalize_block], [normalize_dct], [square_pattern])

How to I initialize there parameters ? Can This be done directly depending of the input image given?

And how do I visualize them as in the post. But in python.

for example

To Transform into

DC images (64x64): luma Cr Cb RGB