hofig2s16
PCB component detection

from morph import *

from handson import *

a = mmreadgray('pcb1bin.tif')

mmshow(a)

b = mmclohole(a)

c = mmsubm(b,a) # holes

mmshow(b)

mmshow(c)

d = mmopen(b,mmsebox(8))

e = mmcdil(d, a) # square

mmshow(d)

mmshow(e)

f = mmsubm(b, d)

g = mmopen(f, mmsedisk(8))

h = mmcdil(g,a) # circle

mmshow(f)

mmshow(g)

mmshow(h)

i = mmsubm(f, g)

j = mmopen(i, mmsedil( mmseline(8,90), mmseline(25)))

k = mmcdil(j,a)

mmshow(i)

mmshow(j)

mmshow(k)

l = mmsubm(i,j)

m = mmopen(l, mmsebox(2))

n = mmcdil(m,a) # thick tracks

mmshow(l)

mmshow(m)

mmshow(n)

o = mmsubm(l,m)

p = mmopen(o, mmsebox())

q = mmcdil(p,a)  # thin tracks

mmshow(o)

mmshow(p)

mmshow(q)

r = mmunion(mmgray(c,'uint8',1),mmgray(e,'uint8',2),
            mmgray(h,'uint8',3),mmgray(k,'uint8',4),
            mmgray(n,'uint8',5))

r = mmunion(r,mmgray(q,'uint8',6))

mmlblshow(r,'BORDER')