mmskelmrec
Morphological skeleton reconstruction (Inverse Medial Axis Transform).

a=mmneg(mmframe(mmbinary(ones((7,9)))))

Warning: downcasting image from double to int32 (may lose precision)

print a

[[False False False False False False False False False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False False False False False False False False False]]

b=mmskelm(a,mmsecross(),'value')

print b

[[0 0 0 0 0 0 0 0 0]
 [0 1 0 0 0 0 0 1 0]
 [0 0 2 0 0 0 2 0 0]
 [0 0 0 3 3 3 0 0 0]
 [0 0 2 0 0 0 2 0 0]
 [0 1 0 0 0 0 0 1 0]
 [0 0 0 0 0 0 0 0 0]]

c=mmskelmrec(b,mmsecross())

print c

[[False False False False False False False False False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False  True  True  True  True  True  True  True False]
 [False False False False False False False False False]]