Create patches in an image

Hello, I have an image of size 223x302x3 uint8. I want to divide the image into 20 equal patches and also get the centre pixel of each of these patch. can someone please help me.

many thanks

[Stephen23]

Use blockproc and indexing, or just indexing, depending on whichever you feel most comfortable with.

[Matthew Eicholtz]

I'm confused by the phrase "20 equal patches"; can you clarify? It is impossible to divide a 223-by-302 image into 20 patches with an equal number of pixels in each patch.