假设我获得了一个对象数组，例如
`array([[ 0 , 0 , 'g', 'g', 'g'],
[ 0 , 0 , 0 , 'g', 'g'],
['d', 0 , 1 , 1 , 'g'],
['d', 'd', 1 , 1 , 'g'],
['d', 'd', 'd', 'd', 'g']], dtype=object)
`
I want to be able to visually see this as I would for using plt.imshow on a numpy array. More specifically, I would like to see an image where the region with g is some color (maybe yellow), the region with d is some color (maybe green) and maybe a colormap that changes for numeric values 0,1,2,... as the example image below.
